Callahan
19741, 1978 RQ8, 1978RQ8, 2000 AN141, 2000AN141, J78R08Q, K00AE1N
All data for this body: [vot]
MPC data
| Name (number) |
Callahan (19741) |
| a |
2.24716 |
| e |
0.13047 |
| i / sin(i) |
8.0497 /
0.14003
|
| q |
1.95397
|
| Q |
2.54035
|
| ω |
227.2266 |
| Node |
167.3318 |
| m |
87.3791 |
| n |
0.2926 |
| Epoch |
2460200.5 |
| nobs |
2624 |
| nopp |
23 |
| Years observed |
1978-2023 |
| rms |
0.55 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.248 |
|
| ep |
0.125 |
|
| sin(ip) |
0.146 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.640 |
|
| Mass |
|
|
| D |
3.88 |
0.166 |
| pV |
0.224 |
0.0439 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2475 |
0.1252 |
0.1458 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.88 |
0.166 |
0.166 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.224 |
0.0439 |
0.0439 |
Masiero |
2011ApJ...741...68M |
NEATM |
G data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2023-12-94 |
MPC-2023-12-94 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 14.64 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |