1113 Katja

1113 Katja
Discovery[1]
Discovered byP. Shajn
Discovery siteSimeiz Obs.
Discovery date15 August 1928
Designations
(1113) Katja
Named after
Ekaterina Iosko[2]
(assistant at Simeiz Observatory)
1928 QC · A909 DH
main-belt · (outer)[3]
background[4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc108.74 yr (39,719 days)
Aphelion3.5537 AU
Perihelion2.6687 AU
3.1112 AU
Eccentricity0.1422
5.49 yr (2,004 days)
341.95°
0° 10m 46.56s / day
Inclination13.280°
324.54°
119.15°
Physical characteristics
Dimensions38.20±0.58 km[5]
38.50±2.0 km[6]
38.65 km (derived)[3]
44.792±0.626 km[7]
51.949±1.531 km[8]
18±1 h[9]
18.42±0.02 h[9]
18.465±0.010 h[10]
18.47±0.05 h[9]
0.1144±0.0266[8]
0.168±0.026[7]
0.195±0.018[11]
0.2071±0.023[6]
0.211±0.008[5]
0.2253 (derived)[3]
C (assumed)[3]
9.30[1][3][7] · 9.40[5][6][8] · 9.49±0.20[12]

1113 Katja, provisional designation 1928 QC, is a background asteroid from the outer regions of the asteroid belt, approximately 39 kilometers in diameter. It was discovered by Pelageya Shajn at the Simeiz Observatory in 1928, and named after Ekaterina Iosko, a staff member at the discovering observatory.[2][13]

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