Viktorbykov

07856, 1975 VB1, 1975VB1, 1977 CR2, 1977CR2, J75V01B, J77C02R

All data for this body: [vot]

MPC data

Name (number)	Viktorbykov (7856)
a	3.19808
e	0.13183
i / sin(i)	6.1627 / 0.10735
q	2.77648
Q	3.61968
ω	296.6815
Node	82.5751
m	275.9774
n	0.1723
Epoch	2460800.5

n_obs	3005
n_opp	27
Years observed	1975-2025
rms	0.70

Best values

	Value	Standard error
Parent	Hygiea (10)

a_p	3.187
e_p	0.119
sin(i_p)	0.088
G	0.150
H	13.250
Mass
D	11.33	0.272
pV	0.072	0.0152

	Value
Rotational Period	184.500
Period quality	2
Spectral Class	C
Spectral Class Score	5.035

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
10	Hygiea	0	Hygiea		Novakovic	2019EPSC...13.1671N	HCM
10	Hygiea	601	Hygiea		Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.1872	0.1191	0.0882	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
11.32	0.273	0.273	Masiero	2011ApJ...741...68M	NEATM
13.85	4.210	4.210	Nugent	2016AJ....152...63N	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.040	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.115	0.0233	0.0233	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
13.25			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
184.59	2	Sidereal	Durech	2023A&A...675A..24D	Model

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
B	C			DeMeo-Carry	VIS	Choi	2023PSJ.....4...49C	PHOT
C		0.122		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
C	C	0.7172	0.7172	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	None	None	Movis	NIR	Popescu	2018A&A...617A..12P	PHOT