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Asteroid 1867 Deiphobus

Alternate IDs:
1971 EA
Asteroid 1867 Deiphobus (top)

2MASS Asteroid and Comet Survey V2.0 (1 data product)

J MAGNITUDE 2MASS * J band selected magnitude in the 2MASS survey, or if the source is not detected in the J-band, the 95% confidence upper limit derived from a 4 arcsec radius aperture measurement taken at the position of the source on the Atlas Image. (The Atlas Images are quick-look images suitable for deriving positional information but not accurate photometry.) The origin of the magnitude is given by the first character of the rd_flg value.
(MAGNITUDE)
J MAGNITUDE 2MASS UNC * Corrected photometric uncertainty for the J-band magnitude in the 2MASS survey. If rd_flg[1]=2, this is the measurement error from the profile-fitting procedure, corrected to be consistent with observed repeatability statistics. If rd_flg[1]=1 or 4, this is the RMS of the brightness measured in aperture photometry on the individual frames. If rd_flg=3, the uncertainty is derived from the residuals to the 1-d radial profile fit (averaging over azimuth) to the unsaturated wings of the bright source. If J_MAG_SIG > 8.0, it is a flag value indicating that a meaningful uncertainty could not be determined for the source. This column is null if the magnitude is a 95% confidence upper limit (rd_flg[1]=0 or 6) or if the source is not measurable (rd_flg[1]=9).
(MAGNITUDE)
H MAGNITUDE 2MASS * H band selected magnitude in the 2MASS survey, or if the source is not detected in the H-band, the 95% confidence upper limit derived from a 4 arcsec radius aperture measurement taken at the position of the source on the Atlas Image. (The Atlas Images are quick-look images suitable for deriving positional information but not accurate photometry.) The origin of the magnitude is given by the second character of the rd_flg value.
(MAGNITUDE)
H MAGNITUDE 2MASS UNC * Corrected photometric uncertainty for the H-band magnitude in the 2MASS survey. If rd_flg[2]=2, this is the measurement error from the profile-fitting procedure, corrected to be consistent with observed repeatability statistics. If rd_flg[2]=1 or 4, this is the RMS of the brightness measured in aperture photometry on the individual frames. If rd_flg=3, the uncertainty is derived from the residuals to the 1-d radial profile fit (averaging over azimuth) to the unsaturated wings of the bright source. If H_MAG_SIG > 8.0, it is a flag value indicating that a meaningful uncertainty could not be determined for the source. This column is null if the magnitude is a 95% confidence upper limit (rd_flg[2]=0 or 6) or if the source is not measurable (rd_flg[2]=9).
(MAGNITUDE)
KS MAGNITUDE 2MASS * Ks band selected magnitude in the 2MASS survey, or if the source is not detected in the Ks-band, the 95% confidence upper limit derived from a 4 arcsec radius aperture measurement taken at the position of the source on the Atlas Image. (The Atlas Images are quick-look images suitable for deriving positional information but not accurate photometry.) The origin of the magnitude is given by the third character of the rd_flg value.
(MAGNITUDE)
KS MAGNITUDE 2MASS UNC * Corrected photometric uncertainty for the Ks-band magnitude in the 2MASS survey. If rd_flg[3]=2, this is the measurement error from the profile-fitting procedure, corrected to be consistent with observed repeatability statistics. If rd_flg[3]=1 or 4, this is the RMS of the brightness measured in aperture photometry on the individual frames. If rd_flg=3, the uncertainty is derived from the residuals to the 1-d radial profile fit (averaging over azimuth) to the unsaturated wings of the bright source. If KS_MAG_SIG > 8.0, it is a flag value indicating that a meaningful uncertainty could not be determined for the source. This column is null if the magnitude is a 95% confidence upper limit (rd_flg[3]=0 or 6) or if the source is not measurable (rd_flg[3]=9).
(MAGNITUDE)
13.552 0.020 13.093 0.028 12.963 0.033
13.571 0.018 13.088 0.026 12.891 0.025

Asteroid 1867 Deiphobus (top)

Asteroid Lightcurve Derived Data V16.0 (1 data product)

LC PERIOD FLAG * Flag referring to the sidereal period given in the asteroid lightcurve parameters file, taking the following values: > - less than < - greater than D - no numeric value (see P_NOTE for details) S - sidereal period (default is synodic period) U - period uncertain This is not the same as ambiguous where one or more additional periods are reported. LC PERIOD NOTE * Note with further information about the period given in the asteroid lightcurve parameters file. LC PERIOD * Rotation period of the asteroid about its axis, in hours, in the asteroid lightcurve parameters file. The period given is synodic unless the S flag (sidereal) is set in P_FLAG.
(HOUR)
LC PERIOD ERR * Error in the rotational period given in the asteroid lightcurve parameters file.
(HOUR)
LC AMPLITUDE FLAG * A flag pertaining to the amplitude of the lightcurve in the asteroid lightcurve parameters file, given in AMP_MIN and AMP_MAX. < - less than > - greater than LC AMPLITUDE MINIMUM * Lightcurve amplitude minimum, in the asteroid lightcurve parameters file. In the cases where a range of amplitude is given, this is the lower limit of the range. For individual observations for which a single value of the amplitude is given, this field contains a null value.
(MAGNITUDE)
LC AMPLITUDE MAXIMUM * Lightcurve amplitude maximum in the asteroid lightcurve parameters file. In cases where a range of amplitudes is given, this field is the upper limit of the range. In cases where a single value is given for the amplitude, this field is that value and a null value is given for AMP_MIN. Both AMP_MIN and AMP_MAX contain a null value if the publication did not include an amplitude.
(MAGNITUDE)
LC AMPLITUDE ERR * Error in the lightcurve amplitudes given in the asteroid lightcurve parameters file.
(MAGNITUDE)
LC QUALITY CODE * This code describes the reliability of the lightcurve results in the asteroid lightcurve parameters file, and takes the following values: 0 - Result later proven incorrect. This appears only on records of individual observations. 1 - Result based on fragmentary lightcurve(s), may be completely wrong. 2 - Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Also, a quality of 2 is used to note results where an ambiguity exists as to the number of extrema per cycle or the number of elapsed cycles between lightcurves. Hence the result may be wrong by an integer ratio. 3 - Denotes a secure result with no ambiguity and full lightcurve coverage. 4 - In addition to full coverage, denotes that a pole position is reported. In some cases, the numerical quality code may be followed by a plus or minus sign, indicating that the reliability is judged somewhat better (+) or worse (-) than implied by an un-signed number alone. This refinement in scale has been only recently added, and not yet retroactively, so most entries don't have signs, even in some cases where they would be appropriate. LC NOTES * Notes pertaining to the lightcurve reported in the asteroid lightcurve parameters file. These are one-letter flags, one or more of which may appear in the column. ? - Usually tied with 'T' to indicate uncertainty. 1 - Monomodal curve (one min/max per rotation) 3 - Trimodal curve (three min/max per rotation) 4 - Quadrimodal curve (four min/max per rotation) A - Ambiguous period D - Period determined by us that differs from that given in the original publication E - Occultation observation H - Space telescope observations I - IR/Thermal observations M - Polarimetric observation N - No lightcurve published O - Adaptive optics observation P - Photographic photometry R - Radar observation T - Tumbling (Non-principal axis rotation - see lc_npa.tab for details) V - Visual photometry Additional flags associated with the T flag are as follows: None after the T - The asteroid is definitely tumbling ? : Possible tumbler 0 : The tumbling damping timescale is long enough that tumbling might be expected, but observations are not sufficient to substantiate either tumbling or not tumbling. - : The tumbling damping timescale is long enough that tumbling might be expected, but observations indicate the object is NOT tumbling. + : The tumbling damping timescale is short enough that tumbling would not seem likely, however, observations indicate that it may be tumbling or actually is tumbling. LC BINARY FLAG * Note regarding binarity in the asteroid lightcurve parameters file: ? - Possible, usually due to lacking mutual eclipse/occultation events B - Binary system M - Multiple system, more than two LC REFERENCE ID * A short version of the reference citation for the published paper in which the values in this entry (in the asteroid lightcurve parameters file) were reported. The full citations may be found in the file lc_references.tab.
15.72 0.01 0.10 0.02 2 French 2012
. I WISE
51.70 0.05 0.30 0.03 1+ Melita 2012
. I AKARI
. N Veres 2015
58.66 0.18 0.27 0.03 3- Mottola 2011
. I SIMPS
> 24. > 0.1 2 French 1987

Asteroid 1867 Deiphobus (top)

Asteroid Names and Discovery V12.0 (1 data product)

DISCOVERY DATE * Date of discovery of an object DISCOVERY LOCATION * Location where the discovery observation of an object was made DISCOVERER NAMES * The name(s) of the discoverer(s) of an object
1971-03-03 El Leoncito Cesco, C. U. and Samuel, A.

Asteroid 1867 Deiphobus (top)

Asteroid Taxonomy V6.0 (1 data product)

Asteroid 1867 Deiphobus (top)

Eight Color Asteroid Survey V4.0 (2 data products)

ECAS S V * Eight Color Asteroid Survey s-v color
(MAGNITUDE)
ECAS S V UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey s-v color
(MILLIMAGNITUDE)
ECAS U V * Eight Color Asteroid Survey u-v color
(MAGNITUDE)
ECAS U V UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey u-v color
(MILLIMAGNITUDE)
ECAS B V * Eight Color Asteroid Survey b-v color
(MAGNITUDE)
ECAS B V UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey b-v color
(MILLIMAGNITUDE)
ECAS V MAGNITUDE * v magnitude from the Eight Color Asteroid Survey
(MAGNITUDE)
ECAS V MAG UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey v magnitude
(MILLIMAGNITUDE)
ECAS V W * Eight Color Asteroid Survey v-w color
(MAGNITUDE)
ECAS V W UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey v - w color
(MILLIMAGNITUDE)
ECAS V X * Eight Color Asteroid Survey v-x color
(MAGNITUDE)
ECAS V X UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey v - x color
(MILLIMAGNITUDE)
ECAS V P * Eight Color Asteroid Survey v-p color
(MAGNITUDE)
ECAS V P UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey v - p color
(MILLIMAGNITUDE)
ECAS V Z * Eight Color Asteroid Survey v-z color
(MAGNITUDE)
ECAS V Z UNC * Uncertainty (standard deviation) in Eight Color Asteroid Survey v - z color
(MILLIMAGNITUDE)
0.142 41 0.090 26 0.051 20 15.717 18 0.168 28 0.298 35 0.356 25 0.343 48
0.082 53 0.111 44 0.078 37 15.705 38 0.119 41 0.252 45 0.294 48 0.298 53
0.051 53 0.021 28 0.008 22 15.808 21 0.209 29 0.309 40 0.338 34 0.374 39

Asteroid 1867 Deiphobus (top)

Lebofsky et al. 3-Micron Asteroid Data V1.2 (3 data products)

thumbnail for split/deiphobus19880822.tab

LEBOFSKY ET AL. 3-MICRON SPECTRUM

time: 1988-08-22      file: split/deiphobus19880822.tab      dataset: Lebofsky et al. 3-Micron Asteroid Data V1.2

Individual 3-micron asteroid spectrum
thumbnail for split/deiphobus19880823.tab

LEBOFSKY ET AL. 3-MICRON SPECTRUM

time: 1988-08-23      file: split/deiphobus19880823.tab      dataset: Lebofsky et al. 3-Micron Asteroid Data V1.2

Individual 3-micron asteroid spectrum
thumbnail for split/deiphobus19880824.tab

LEBOFSKY ET AL. 3-MICRON SPECTRUM

time: 1988-08-24      file: split/deiphobus19880824.tab      dataset: Lebofsky et al. 3-Micron Asteroid Data V1.2

Individual 3-micron asteroid spectrum
Asteroid 1867 Deiphobus (top)

SDSS Moving Object Catalog V3.0 (1 data product)

SDSS U MAGNITUDE * SDSS u' psf magnitude. The SDSS u' filter has effective wavelength 3540 angstroms and FWHM 570 angstroms. The psf (point spread function) magnitude is calculated from the total flux determined by a point spread fuction fitting procedure.
(MAGNITUDE)
SDSS U ERROR * SDSS u' magnitude error.
(MAGNITUDE)
SDSS G MAGNITUDE * SDSS g' psf magnitude. The SDSS g' filter has effective wavelength 4770 angstroms and FWHM 1370 angstroms. The psf (point spread function) magnitude is calculated from the total flux determined by a point spread fuction fitting procedure.
(MAGNITUDE)
SDSS G ERROR * SDSS g' magnitude error.
(MAGNITUDE)
SDSS R MAGNITUDE * SDSS r' psf magnitude. The SDSS r' filter has effective wavelength 6230 angstroms and FWHM 1370 angstroms. The psf (point spread function) magnitude is calculated from the total flux determined by a point spread fuction fitting procedure.
(MAGNITUDE)
SDSS R ERROR * SDSS r' magnitude error.
(MAGNITUDE)
SDSS I MAGNITUDE * SDSS i' psf magnitude. The SDSS i' filter has effective wavelength 7630 angstroms and FWHM 1530 angstroms. The psf (point spread function) magnitude is calculated from the total flux determined by a point spread fuction fitting procedure.
(MAGNITUDE)
SDSS I ERROR * SDSS i' magnitude error.
(MAGNITUDE)
SDSS Z MAGNITUDE * SDSS z' psf magnitude. The SDSS z' filter has effective wavelength 9130 angstroms and FWHM 950 angstroms. The psf (point spread function) magnitude is calculated from the total flux determined by a point spread fuction fitting procedure.
(MAGNITUDE)
SDSS Z ERROR * SDSS z' magnitude error.
(MAGNITUDE)
SDSS A COLOR * SDSS a* color. See Ivezic et al. 2001 [IVEZICETAL2001] AJ 122, 2749-2784.
(MAGNITUDE)
SDSS A ERROR * SDSS a* color error
(MAGNITUDE)
SDSS V MAGNITUDE * Johnson V-band magnitude synthesized from SDSS colors using V = r + 0.44*(g-r) - 0.02
(MAGNITUDE)
SDSS B MAGNITUDE * Johnson B-band magnitude synthesized from SDSS colors using B = V + 1.04*(g-r) + 0.19
(MAGNITUDE)
17.83 0.02 16.33 0.02 15.75 0.01 15.50 0.01 15.35 0.02 0.06 0.02 15.99 16.78
17.34 0.02 15.94 0.01 15.29 0.01 15.11 0.02 14.96 0.02 0.09 0.01 15.56 16.42

Asteroid 1867 Deiphobus (top)

Vilas Asteroid Spectra V1.1 (1 data product)

thumbnail for spectra/deiphobu.tab

DEIPHOBU

time: 1984-04-24      file: spectra/deiphobu.tab      dataset: Vilas Asteroid Spectra V1.1

Asteroid reflectance spectrum by Vilas and collaborators

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