Knopfia

01311, 1929 CG1, 1929CG1, 1933 FF1, 1933FF1, 1972 RP2, 1972RP2, 1976 SD, 1976SD, J29C01G, J33F01F, J72R02P, J76S00D

All data for this body: [vot]

MPC data
Name (number) Knopfia (1311)
a 2.42699
e 0.04330
i / sin(i) 2.8331 / 0.04943
q 2.32191
Q 2.53207
ω 244.3764
Node 244.9486
m 176.1972
n 0.2607
Epoch 2460800.5
nobs 5106
nopp 36
Years observed 1933-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.427
ep 0.074
sin(ip) 0.064
G 0.150
H 12.430
Mass
D 10.47 0.050
pV 0.130 0.0121
Value
Rotational Period 19.290
Period quality 3
Spectral Class X
Spectral Class Score 3.894
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4267 0.0745 0.0643 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.52 0.078 0.078 Masiero 2011ApJ...741...68M NEATM
13.61 0.990 0.990 Usui 2011PASJ...63.1117U NEATM
13.65 2.730 2.730 Ali-Lagoa 2018A&A...612A..85A NEATM
14.06 1.700 1.700 Tedesco 2002AJ....123.1056T STM
14.62 0.210 0.210 Masiero 2012ApJ...759L...8M NEATM
14.65 4.120 4.120 Nugent 2016AJ....152...63N NEATM
14.83 3.100 3.100 Nugent 2016AJ....152...63N NEATM
9.94 0.070 0.070 Masiero 2014ApJ...791..121M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.080 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.080 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM
0.099 0.0200 0.0200 Masiero 2012ApJ...759L...8M NEATM
0.107 0.0430 0.0430 Ali-Lagoa 2018A&A...612A..85A NEATM
0.118 0.0350 0.0350 Tedesco 2002AJ....123.1056T STM
0.211 0.0260 0.0260 Masiero 2011ApJ...741...68M NEATM
0.280 0.0600 0.0600 Masiero 2014ApJ...791..121M 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
12.43 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
19.296 3 Synodic Black 2016MPBu...43..287B Lightcurve
32.3276 2 Sidereal Durech 2018A&A...617A..57D Model
9.65 1+ Synodic Clark 2010MPBu...37...89C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Ds Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X X 0.6490 0.6490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT