Welch

02405, 1963 UF, 1963UF, 1965 AG1, 1965AG1, 1969 VV, 1969VV, 1972 JQ1, 1972JQ1, 1974 RR, 1974RR, 1975 WG1, 1975WG1, 1977 DN9, 1977DN9, 1977 FV1, 1977FV1, 1979 OJ6, 1979OJ6, 1980 RC2, 1980RC2, 1980 TF, 1980TF, 1981 YB2, 1981YB2, J63U00F, J65A01G, J69V00V, J72J01Q, J74R00R, J75W01G, J77D09N, J77F01V, J79O06J, J80R02C, J80T00F, J81Y02B

All data for this body: [vot]

MPC data
Name (number) Welch (2405)
a 3.19828
e 0.14127
i / sin(i) 2.2543 / 0.03934
q 2.74647
Q 3.65010
ω 3.2360
Node 128.0483
m 153.4758
n 0.1723
Epoch 2460800.5
nobs 6853
nopp 41
Years observed 1951-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.199
ep 0.155
sin(ip) 0.022
G 0.150
H 11.850
Mass
D 23.73 0.331
pV 0.046 0.0037
Value
Rotational Period 14.341
Period quality 2
Spectral Class C
Spectral Class Score 7.655
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 1.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1992 0.1549 0.0225 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
22.36 0.410 0.410 Masiero 2012ApJ...759L...8M NEATM
22.64 4.530 4.530 Ali-Lagoa 2018A&A...612A..85A NEATM
25.43 1.600 1.600 Tedesco 2002AJ....123.1056T STM
26.41 0.620 0.620 Usui 2011PASJ...63.1117U NEATM
27.75 9.340 9.340 Nugent 2016AJ....152...63N NEATM
28.13 2.810 2.810 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0050 0.0050 Tedesco 2002AJ....123.1056T STM
0.040 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.052 0.0070 0.0070 Masiero 2012ApJ...759L...8M NEATM
0.052 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.080 0.0320 0.0320 Ali-Lagoa 2018A&A...612A..85A 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
11.85 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.3411 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.944 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.89 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.6459 0.6459 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT