2001 MT21

2001MT21, 54804, K01M21T

All data for this body: [vot]

MPC data
Name (number) 2001 MT21 (54804)
a 2.26494
e 0.10420
i / sin(i) 2.0362 / 0.03553
q 2.02893
Q 2.50095
ω 220.1372
Node 25.8393
m 36.7380
n 0.2891
Epoch 2460800.5
nobs 1076
nopp 21
Years observed 1995-2025
rms 0.83
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.265
ep 0.117
sin(ip) 0.028
G 0.150
H 16.560
Mass
D 2.25 0.690
pV 0.096 0.0425
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 5.294
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2649 0.1171 0.0283 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.25 0.690 0.690 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.096 0.0425 0.0425 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.56 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D 0.08 Bus VIS Carvano 2010A&A...510A..43C PHOT
V X 0.1097 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.3090 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.5733 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT