[ hide orbit diagram ]
For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
[ revert to old Java-based viewer ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1302079498134869 | 3.0282e-08 | |
| a | 2.720016561537827 | 1.0859e-08 | au |
| q | 2.365848781601256 | 8.4672e-08 | au |
| i | 6.429656596039067 | 4.3997e-06 | deg |
| node | 4.64669331744077 | 2.8889e-05 | deg |
| peri | 273.3648565729135 | 3.3589e-05 | deg |
| M | 289.932422220356 | 1.7869e-05 | deg |
| tp | 2459319.411626800519
(2021-Apr-14.91162680) | 8.1721e-05 | TDB |
| period | 1638.535101202555
4.49 | 9.8124e-06
2.686e-08 | d
yr |
| n | .2197084455107422 | 1.3157e-09 | deg/d |
| Q | 3.074184341474398 | 1.2273e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.8 |
|
n/a |
MPO384775 |
|
| diameter |
diameter |
15.830 |
km |
0.120 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
6.084 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] |
| geometric albedo |
albedo |
0.162 |
|
0.020 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| SMASSII spectral type |
spec_B |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 2730 Barks (1981 QH) Discovered 1981-Aug-30 by Bowell, E. at Flagstaff (AM) |
| Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 2033-Oct-26 06:06 |
< 00:01 |
Amphi |
0.041138464613322 |
0.0411373781805674 |
0.0411395511216929 |
3.40395690403222 |
3.40395686297959 |
2463896.754367544 |
0.717748260628336 |
146.598273436502 |
41.3710150575212 |
75.6294540030943 |
144375.152528848 |
T |
41 |
CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:44 |
2020-Nov-13 04:06 |
| 2129-Aug-03 09:44 |
00:03 |
Amphi |
0.04527606771742 |
0.0452700722616499 |
0.045282066003883 |
3.27905993463445 |
3.2790598959127 |
2498875.905686751 |
2.64622108540405 |
643.015716517788 |
41.0196265025451 |
-62.5422515632901 |
146487.839458175 |
T |
41 |
CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:44 |
2020-Nov-13 04:06 |
| 2168-Mar-28 14:16 |
00:01 |
Juno |
0.0150114380178946 |
0.0150098442958888 |
0.0150130439503384 |
8.93701996284743 |
8.93701987216337 |
2512993.094302639 |
1.18187720237741 |
771.671181177567 |
37.9690362171354 |
-84.778563892432 |
58885.633194322 |
T |
41 |
CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:44 |
2020-Nov-13 04:06 |
|
Alternate Designations
| 1981 QH = 1935 FQ = 1935 HC = 1963 SP = 1972 TJ5 = 1975 EM1 |
|
|
