[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08402778664013752 | 4.447e-08 | |
| a | 2.206891549851646 | 7.4233e-09 | au |
| q | 2.02145133756279 | 9.5861e-08 | au |
| i | 9.442408732131208 | 3.3125e-06 | deg |
| node | 311.3813176225428 | 2.6996e-05 | deg |
| peri | 27.99482625929133 | 3.7246e-05 | deg |
| M | 176.6694927458011 | 2.5296e-05 | deg |
| tp | 2458612.836150229821
(2019-May-09.33615023) | 8.4473e-05 | TDB |
| period | 1197.484538101118
3.28 | 6.042e-06
1.654e-08 | d
yr |
| n | .3006301864831268 | 1.5168e-09 | deg/d |
| Q | 2.392331762140503 | 8.0471e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457167.5 (2015-May-25.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08456857321947031 | 4.4545e-08 | |
| q | 2.019953221880812 | 9.6115e-08 | au |
| tp | 2457415.198741745301
(2016-Jan-27.69874175) | 8.4776e-05 | TDB |
| node | 311.449863810523 | 2.7e-05 | deg |
| peri | 27.88329493914041 | 3.7119e-05 | deg |
| i | 9.442221478394025 | 3.3128e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
1.984252780988696E-15 |
-4.272246388006632E-15 |
9.371212843185697E-13 |
-1.441330067828423E-14 |
1.958875510827248E-13 |
-5.300067976337643E-15 |
| q |
-4.272246388006632E-15 |
9.238126641582841E-15 |
-2.180564987876031E-12 |
3.24330499205031E-14 |
-4.736206510942842E-13 |
1.180764134239523E-14 |
| tp |
9.371212843185697E-13 |
-2.180564987876031E-12 |
7.186893152772311E-9 |
-2.441968774325354E-11 |
2.174955996542176E-9 |
-1.700435842223209E-11 |
| node |
-1.441330067828423E-14 |
3.24330499205031E-14 |
-2.441968774325354E-11 |
7.290219589163427E-10 |
-7.252613760635977E-10 |
9.887717572755176E-12 |
| peri |
1.958875510827248E-13 |
-4.736206510942842E-13 |
2.174955996542176E-9 |
-7.252613760635977E-10 |
1.377796903650502E-9 |
-1.471076093870233E-11 |
| i |
-5.300067976337643E-15 |
1.180764134239523E-14 |
-1.700435842223209E-11 |
9.887717572755176E-12 |
-1.471076093870233E-11 |
1.097454556676509E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.07 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
61. |
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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm] |
|
| 5774 Ratliff | Discovered 1989 July 2 by E. F. Helin at Palomar. |
| Until his tragic and untimely death, Nicholas Paul Ratliff (1982-2002), of Oklahoma City, was always available to carry out jobs for family and friends, usually at his own expense, and even if he had other plans. A keen baseballer, he also had an interest in astronomy, ever since he was given a telescope at the age of five. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20050125/MPCPages.arc | Last Updated: 2005-06-01 |
|
|
|
