Visibility II / V
(16960) 1998 QS52 (1998 QS52) The asteroid Apollo NEO / PHA was photographed on the second night of November. The asteroid was discovered by the LINEAR Socorro Exploration Program, (704 Lincoln Laboratory ETS, New Mexico) on August 25, 1998. This Apollo orbit intersects the orbits of the planets Mercury - Mars and is one of the largest asteroids classified as dangerous. Source Wikipedia
https://en.wikipedia.org/wiki/(16960)_1998_QS52 . Total estimate 4.9km and rotation speed 5.789h / r. Spectrum class spec_B => Sq. When photographed, the asteroid was 0.6064au away and the closest on 11/11/2021 was 0.53au.
1Picture. first image in the series1 L60s measured, 2021-11-06UT 17: 21: 35UT 2459525.22332JDUT 20h42m59.73s + 15d05'07.2 "16.318mag Std Dev 317.763 SNR34.543 FWHM3.163", JPL Horizon 17: 21: 35UT 20h42m59.77s + 15d05'07.9 "15.691 mag.
2Picture. last image in the series20 L60s measured, 2021-11-06UT 17: 42: 19UT 2459525.23771JDUT 20h42m57.68s + 15d04'31.4 "16.350mag Std Dev 276.820 SNR7.321 FWHM3.041", JPL Horizon 17: 42: 19UT 20h42m57.69s + 15d04'32.0 "15.691 mag.
3Picture sum of L60s from a stack of 1-20 images, fast motion is displayed. No other asteroids below 24.0 mag are shown. TYC 1634-48-1 v. 11.33mag stars used to calibrate brightness measurement.
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