1981 DH1
1981DH1, 18304, J81D01H
All data for this body: [vot]
MPC data
| Name (number) |
1981 DH1 (18304) |
| a |
3.06494 |
| e |
0.18885 |
| i / sin(i) |
7.2183 /
0.12565
|
| q |
2.48614
|
| Q |
3.64375
|
| ω |
105.2656 |
| Node |
279.8692 |
| m |
236.6433 |
| n |
0.1837 |
| Epoch |
2460800.5 |
| nobs |
1999 |
| nopp |
22 |
| Years observed |
1981-2025 |
| rms |
0.69 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.062 |
|
| ep |
0.154 |
|
| sin(ip) |
0.152 |
|
| G |
0.150 |
|
| H |
13.880 |
|
| Mass |
|
|
| D |
6.00 |
0.159 |
| pV |
0.214 |
0.0304 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.0615 |
0.1543 |
0.1518 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 6.00 |
0.159 |
0.159 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.214 |
0.0304 |
0.0304 |
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 |
| 13.88 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |