Comet NEOWISE Video: Comet NEOWISE 2020 in India Time, Date & Comet NEOWISE Location Tracker:
The post-hibernation NEOWISE mission was anticipated to discover 150 previously unknown near-Earth objects and to learn more about the characteristics of 2,000 known asteroids.Few objects smaller than 100 m (330 ft) in diameter were detected by NEOWISE’s automated detection software, known as the WISE Moving Object Processing Software (WMOPS), because it requires five or more detections to be reported. The average albedo of asteroids larger than 100 meters discovered by NEOWISE is 0.14 .
The telescope was turned on again in 2013, and by December 2013 the telescope had cooled down enough and was able to resume observations. Between then and May 2017, the telescope made almost 640,000 detections of over 26,000 previously known objects including asteroids and comets.In addition, it discovered 416 new objects and about a quarter of those were near-Earth objects classification.
As of May 2018, WISE / NEOWISE statistics lists a total of 290 near-Earth objects (NEOs), including 2016 WF9 and C/2016 U1, discovered by the spacecraft:
- 262 NEAs (subset of NEOs)
- 47 PHAs (subset of NEAs)
- 28 comets
Of the 262 near-Earth asteroids (NEAs), 47 of them are considered potentially hazardous asteroids (PHAs), a subset of the much larger family of NEOs, but particularly more likely to hit Earth and cause significant destruction.
NEOs can be divided into NECs (comets only) and NEAs (asteroids only), and further into subcategories such as Atira or Apohele asteroids, Aten asteroids, Apollo asteroids, Amor asteroids and the potentially hazardous asteroids (PHAs).