4220 T-2
4220T-2, 2000 EJ54, 2000EJ54, 99947, K00E54J, T2S4220
All data for this body: [vot]
MPC data
| Name (number) |
4220 T-2 (99947) |
| a |
2.80414 |
| e |
0.16523 |
| i / sin(i) |
12.8880 /
0.22305
|
| q |
2.34080
|
| Q |
3.26747
|
| ω |
108.9687 |
| Node |
171.5914 |
| m |
60.2553 |
| n |
0.2099 |
| Epoch |
2460800.5 |
| nobs |
1414 |
| nopp |
21 |
| Years observed |
1973-2025 |
| rms |
0.81 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.806 |
|
| ep |
0.142 |
|
| sin(ip) |
0.226 |
|
| G |
0.150 |
|
| H |
15.080 |
|
| Mass |
|
|
| D |
2.93 |
0.743 |
| pV |
0.248 |
0.1089 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
21.271 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.8060 |
0.1418 |
0.2262 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.93 |
0.743 |
0.743 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.248 |
0.1089 |
0.1089 |
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 |
| 15.08 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |