Ziffer

07909, 1975 SK, 1975SK, 1981 WZ8, 1981WZ8, 1986 RG13, 1986RG13, 1991 NB5, 1991NB5, J75S00K, J81W08Z, J86R13G, J91N05B

All data for this body: [vot]

MPC data

Name (number)	Ziffer (7909)
a	3.17243
e	0.17750
i / sin(i)	2.3887 / 0.04168
q	2.60931
Q	3.73555
ω	329.8658
Node	69.4394
m	275.8725
n	0.1744
Epoch	2460800.5

n_obs	2522
n_opp	30
Years observed	1975-2025
rms	0.69

Best values

	Value	Standard error
Parent	Themis (24)

a_p	3.159
e_p	0.164
sin(i_p)	0.025
G	0.150
H	13.620
Mass
D	11.00	0.109
pV	0.066	0.0080

	Value
Rotational Period	11.880
Period quality	2
Spectral Class	C
Spectral Class Score	2.000

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
24	Themis	0	Themis		Novakovic	2019EPSC...13.1671N	HCM
24	Themis	602	Themis	0.2100	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.1595	0.1641	0.0245	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
11.00	0.109	0.109	Masiero	2011ApJ...741...68M	NEATM
11.77	3.100	3.100	Nugent	2016AJ....152...63N	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.040	0.0300	0.0300	Nugent	2016AJ....152...63N	NEATM
0.068	0.0083	0.0083	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
13.62			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
11.883	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	B	0.3134	0.3134	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
C				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
CX		0.34		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT