Evgalvasil'ev

12979, 1977 HP, 1977HP, 1978 SB8, 1978SB8, J77H00P, J78S08B

All data for this body: [vot]

MPC data
Name (number) Evgalvasil'ev (12979)
a 2.26840
e 0.17784
i / sin(i) 5.3487 / 0.09322
q 1.86499
Q 2.67180
ω 354.4343
Node 14.6126
m 232.9276
n 0.2885
Epoch 2460800.5
nobs 2286
nopp 23
Years observed 1977-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.268
ep 0.138
sin(ip) 0.084
G 0.150
H 14.900
Mass
D 2.87 0.171
pV 0.410 0.0717
Value
Rotational Period 5.783
Period quality 2
Spectral Class B
Spectral Class Score 2.226
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.4100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2683 0.1378 0.0840 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.87 0.171 0.171 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.410 0.0717 0.0717 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
14.90 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.065 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve
5.78331 2 Sidereal Durech 2016A&A...587A..48D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.371 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT