Contact information

Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

(388945) 2008 TZ3 - 24.4.2022 at 00.49 - 24.4.2022 at 01.11 Orimattila, Artjärvi, Tähtikallio Observation number 106934

Visibility III / V

(388945) 2008 TZ3 (2008 TZ3) The Apollo NEO / PHA nasteroid was filmed on the second night of the April 2022 campaign. The asteroid was discovered by the Mount Lemmon Survey on October 6, 2008 at the Mount Lemmon Observatory (G96) .A total estimate of 290m. (0.219-0.490 km). Rotation speed 39.15h / r. When photographed, the asteroid was at a distance of 0.1110au and the nearest 15 May 2022 0.03838au.

1Picture. first image in the series1 L120s measured, 2022-04-23T 21: 49: 40UT 2459693.40949JDUT 12h31m40.18s + 19d24'12.1 "17.306mag Std Dev 167.135 SNR28.537 FWHM7.467", JPL Horizon 21: 49: 40UT 12h31m40.31s + 19d24'12.4 "17.304mag.

2Picture. last image in the series11 L120s measured, 2022-04-23T 22: 10: 33UT 2459693.42399JDUT 12h31m36.81s + 19d23'53.6 "17.192mag Std Dev 168.586 SNR37.483 FWHM6.794", JPL Horizon 22: 10: 33UT 12h31m36.96s + 19d23'54.0 "17.304mag.

3Picture summary image of the L120s 1-11 stack of images, fast motion is displayed. Asteroid (456191) 2006 HT89 20008mag, faintly visible. No other asteroids below 21.1 mag are shown.

TYC 1447-676-1 v. 12.03mag stars used to calibrate brightness measurement.

Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • (388945) 2008 TZ3
  • Seeing
    • Good
Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000EC MkII, filter L, bin3 11 x 120s

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