[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .07397322147521265 | 1.837e-08 | |
| a | 2.367919303527988 | 8.645e-09 | au |
| q | 2.19275668445268 | 4.2548e-08 | au |
| i | 9.332084284644816 | 7.5387e-07 | deg |
| node | 52.59956398653374 | 8.2444e-06 | deg |
| peri | 300.4735556937727 | 1.7477e-05 | deg |
| M | 235.3452304845673 | 1.371e-05 | deg |
| tp | 2459661.345311085956
(2022-Mar-22.84531109) | 5.143e-05 | TDB |
| period | 1330.91026228567
3.64 | 7.2885e-06
1.995e-08 | d
yr |
| n | .2704915652102236 | 1.4813e-09 | deg/d |
| Q | 2.543081922603295 | 9.2845e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2456959.5 (2014-Oct-29.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .07388728418824236 | 1.867e-08 | |
| q | 2.193561663909389 | 4.3328e-08 | au |
| tp | 2456995.301459127207
(2014-Dec-03.80145913) | 4.8311e-05 | TDB |
| node | 52.65443494097188 | 8.2547e-06 | deg |
| peri | 299.5630466421539 | 1.7335e-05 | deg |
| i | 9.327242421362078 | 7.5319e-07 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
3.485635596351059E-16 |
-7.955502115319582E-16 |
-7.192842964359234E-13 |
6.028724821044703E-14 |
-2.718321647702826E-13 |
4.702034921488419E-15 |
| q |
-7.955502115319582E-16 |
1.877281212330242E-15 |
1.720580073088837E-12 |
-1.417717203341004E-13 |
6.482796569736733E-13 |
-1.104947265294038E-14 |
| tp |
-7.192842964359234E-13 |
1.720580073088837E-12 |
2.333935865705318E-9 |
-5.947136452847688E-11 |
7.336086804697328E-10 |
2.357943828689168E-12 |
| node |
6.028724821044703E-14 |
-1.417717203341004E-13 |
-5.947136452847688E-11 |
6.81395193916489E-11 |
-8.667776875700757E-11 |
2.689616696771601E-12 |
| peri |
-2.718321647702826E-13 |
6.482796569736733E-13 |
7.336086804697328E-10 |
-8.667776875700757E-11 |
3.005049837443962E-10 |
-2.362151780471606E-12 |
| i |
4.702034921488419E-15 |
-1.104947265294038E-14 |
2.357943828689168E-12 |
2.689616696771601E-12 |
-2.362151780471606E-12 |
5.672950483760168E-13 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.88 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
4.46445 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
| 18627 Rogerbonnet | Discovered 1998 Feb. 27 by M. Tombelli and C. Casacci at Cima Ekar. |
| Roger-Maurice Bonnet (b. 1937) is a French experimental astrophysicist specializing in stellar physics. From 1983 to 2001 he was Science Director of ESA and he created Horizon 2000. Under his lead, ESA launched the scientific projects, Giotto, Hipparcos, ISO, XMM, SOHO, Cluster, Cassini-Huygens and HST. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC batch dated 2017-03-12 | Last Updated: 2017-04-19 |
|
Alternate Designations
| 1998 DH33 = 1989 VV1 = 1999 LD20 |
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