1997 HE2
1997HE2, 2000 YT20, 2000YT20, 37778, J97H02E, K00Y20T
All data for this body: [vot]
MPC data
| Name (number) |
1997 HE2 (37778) |
| a |
3.10492 |
| e |
0.11996 |
| i / sin(i) |
3.5947 /
0.06270
|
| q |
2.73244
|
| Q |
3.47740
|
| ω |
170.9476 |
| Node |
48.3878 |
| m |
32.5843 |
| n |
0.1801 |
| Epoch |
2460800.5 |
| nobs |
1485 |
| nopp |
22 |
| Years observed |
1991-2025 |
| rms |
0.83 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.107 |
|
| ep |
0.149 |
|
| sin(ip) |
0.051 |
|
| G |
0.150 |
|
| H |
14.420 |
|
| Mass |
|
|
| D |
6.70 |
0.562 |
| pV |
0.082 |
0.0190 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
B |
| Spectral Class Score |
0.831 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.1066 |
0.1486 |
0.0511 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 6.70 |
0.562 |
0.562 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.082 |
0.0190 |
0.0190 |
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 |
| 14.42 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| B |
B |
0.1385 |
0.1385 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |