1997GQ21
1999TO157, 37770, J97G21Q, J99TF7O
All data for this body: [vot]
MPC data
| Name (number) |
1997GQ21 (37770) |
| Packed designation |
37770 |
| a |
3.20914 |
| e |
0.07407 |
| i / sin(i) |
4.7219 /
0.08232
|
| q |
2.97144
|
| Q |
3.44684
|
| ω |
347.6430 |
| Node |
207.3322 |
| m |
133.9927 |
| n |
0.1714 |
| Epoch |
2459600.5 |
| nobs |
844 |
| nopp |
18 |
| Years observed |
1997-2021 |
| rms |
0.80 |
Best values
|
Value |
Standard error |
| Parent |
Hygiea (10) |
|
| |
|
|
| ap |
3.187 |
|
| ep |
0.122 |
|
| sin(ip) |
0.091 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.640 |
|
| Mass |
|
|
| D |
4.68 |
1.311 |
| pV |
0.128 |
0.0419 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 10 |
Hygiea |
601 |
Hygiea |
|
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.1869 |
0.1221 |
0.0913 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Jan-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.68 |
1.311 |
1.311 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.128 |
0.0419 |
0.0419 |
Masiero |
2011ApJ...741...68M |
NEATM |
G data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2022-01-18 |
MPC-2022-01-18 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 14.64 |
|
|
MPC-2022-01-18 |
MPC-2022-01-18 |
Phot |