Knacke

04312, 1930 VK, 1930VK, 1978 WW11, 1978WW11, 1982 YF5, 1982YF5, 1987 DF5, 1987DF5, 1989 WY, 1989WY, J30V00K, J78W11W, J82Y05F, J87D05F, J89W00Y

All data for this body: [vot]

MPC data
Name (number) Knacke (4312)
a 2.38473
e 0.15162
i / sin(i) 4.4293 / 0.07723
q 2.02316
Q 2.74631
ω 287.0048
Node 91.1339
m 257.9920
n 0.2676
Epoch 2460800.5
nobs 4200
nopp 29
Years observed 1930-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.384
ep 0.120
sin(ip) 0.062
G 0.150
H 13.500
Mass
D 12.42 0.070
pV 0.045 0.0052
Value
Rotational Period 175.400
Period quality 2
Spectral Class B
Spectral Class Score 4.872
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3844 0.1200 0.0621 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.84 2.120 2.120 Nugent 2016AJ....152...63N NEATM
12.15 2.430 2.430 Ali-Lagoa 2018A&A...612A..85A NEATM
12.38 0.071 0.071 Masiero 2011ApJ...741...68M NEATM
12.89 4.070 4.070 Masiero 2021PSJ.....2..162M NEATM
13.13 4.140 4.140 Masiero 2021PSJ.....2..162M NEATM
13.63 4.800 4.800 Masiero 2020PSJ.....1....5M NEATM
13.76 3.290 3.290 Masiero 2020PSJ.....1....5M NEATM
14.38 4.140 4.140 Masiero 2020PSJ.....1....5M NEATM
14.40 4.760 4.760 Masiero 2017AJ....154..168M NEATM
14.82 0.630 0.630 Usui 2011PASJ...63.1117U NEATM
15.08 2.690 2.690 Masiero 2012ApJ...759L...8M NEATM
18.45 3.690 3.690 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.032 0.0210 0.0210 Masiero 2020PSJ.....1....5M NEATM
0.037 0.0200 0.0200 Masiero 2020PSJ.....1....5M NEATM
0.041 0.0252 0.0252 Masiero 2017AJ....154..168M NEATM
0.043 0.0180 0.0310 Masiero 2021PSJ.....2..162M NEATM
0.045 0.0500 0.0500 Masiero 2020PSJ.....1....5M NEATM
0.046 0.0200 0.0340 Masiero 2021PSJ.....2..162M NEATM
0.050 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.060 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
0.061 0.0087 0.0087 Masiero 2011ApJ...741...68M NEATM
0.273 0.1330 0.1330 Masiero 2012ApJ...759L...8M 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
13.50 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
175.47 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.812 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT