Asteroids with Satellites Database--Johnston's Archive
2007 DT103
compiled by Wm. Robert Johnston
last updated
20 September 2014
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:
NEA, Apollo
(PHA)
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.2058489 AU
| |
orbital period P: |
3.2762108 yr
(= 1196.6360 d)
| |
eccentricity e: |
0.57557287
| |
perihelion distance q: |
0.93622211 AU
| |
aphelion distance Q: |
3.4754756 AU
| |
inclination i: |
5.4544994°
| |
argument of perihelion ω: |
134.149632°
| |
ascending node Ω: |
137.0351801°
| |
mean anomaly M: |
36.1593°
| |
perihelion passage TP: |
2014 Jan 22.806
| |
Epoch: |
2014 May 23
| |
data arc: |
2007 Feb-2007 Sep
(772 obs.)
| |
Earth MOID: |
0.0121176 AU
| |
Jupiter Tisserand invariant TJ: |
3.419
|
orbital data, secondary:
|
semimajor axis as: |
0.45
km
(separation)
[B07b]
| |
separation/primary radius as/rp: | 3.0 [*E] | |
separation/Hill radius as/rH: | 0.020 [*E] | |
orbital period Ps: |
0.56
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
19.2
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
0.31
km [*D]
| |
geometric albedo: |
0.38
[*E]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
22 km [*E]
|
other data, primary:
|
diameter dp: |
0.3
km [B07b]
| |
rotation period RPp: |
2.703
± 0.04
h [A09a]
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>0.08
km [B07b]
| |
diameter ratio ds/dp: |
0.267
[*D]
| |
component mag. difference ΔM: |
2.9
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
2007 DT103
--discovery and notes:
Primary discovered
2007 Feb 26
from
Mt. Lemmon, Arizona, USA
by
Mt. Lemmon Survey.
Companion discovered
2007 Jul 26
by L. A. M. Benner, S. J. Ostro, J. D. Giorgini, J. Van Brimmer, L. Juare, J. S. Jao, R. F. Jurgens, M. A. Slade, and M. W. Busch
using
radar
observations from Goldstone, California, USA.
Announced
2007 Aug 03 [B07b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Apostolovska, Gordana, Ivanova, Violeta, & Kostov, Andon 2009, Minor Planet Bulletin CCD Photometry of 967 Helionape, 3415 Danby, (85275) 1994 LY, 2007 DT103, and 2007 TU24
- Somers, James M., Hicks, M. D., & Lawrence, K. J. 2008, Bulletin of the American Astronomical Society Optical Characterization of Planetary Radar Targets
- Hicks, Michael D. & Somers, J. 2007, Bulletin of the American Astronomical Society Physical Characterization of Radar Detected Asteroid 2007 DT103
- Benner, L. A. M., Ostro, S. J., Giorgini, J. D., van Brimmer, J., Juare, L., Jao, J. S., Jurgens, R. F., Slade, M. A., & Busch, M. W. 2007, International Astronomical Union Circular 2007 DT_103
- Benner, L. A. M., Ostro, S. J., Giorgini, J. D., van Brimmer, J., Juare, L., Jao, J. S., Jurgens, R. F., Slade, M. A., & Busch, M. W. 2007, Central Bureau Electronic Telegrams 2007 DT103
©
2007-2009, 2014
by Wm. Robert Johnston.
Last modified
20 September 2014.
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