NICER Mission Timeline
- Please see Upcoming and recent past
up-to-date NICER observation
- The phase 1 proposal deadline for Cycle 2 of
NICER's Guest Observer program is:
4:30 pm ET on Wednesday, November 13,
Early Post-Launch NICER activities
- July 13 Begin Science Program
- June 21-July 12 Initial calibration and hardware commissioning
- June 17 NICER uses Raster scan of Serpens X-1 to determine X-ray instrument and star tracker alignment
- June 14 NICER is powered up, NICER is deployed, NICER range of motion is verified by robotic camera
- June 12-13 NICER is installed on the ISS ELC2
- June 11 2017 NICER is extracted from the Dragon trunk
- NICER is Back in Operation (21 Oct 2019)
NICER is operating normally after stowing for last week's ISS operations.
- NICER Stowed Due to ISS Operations (15 Oct 2019)
In support of ISS operations, NICER has been stowed since Sunday, October 13. As a result, NICER is not currently taking requests for Target of Opportunity observations. We anticipate that NICER observations will resume as soon as the ISS operations are completed.
- NICER observations of the X-ray transient MAXI J1807+132: flaring activity (08 Oct 2019)
NICER has been monitoring the X-ray transient MAXI J1807+132 regularly since September 16. During this time, NICER detected brief, sudden episodes of X-ray brightening which may be analogous to similar flaring behavior seen near the end of the 2017 outburst of the source.
- NICER observes increasing luminosity from XTE J1739-285 (30 Sep 2019)
From September 27 to September 30, NICER observed this newly active Galactic Center high-energy transient. The NICER observations show that the X-ray flux in the 0.1-10 keV band more than doubled over a timespan of about 3 days, with a coincident increase in black body temperature.
- NICER observations of the X-ray transient MAXI J1807+132 (27 Sep 2019)
NICER observations of the new X-ray transient MAXI J1807+132, discovered on September 10. The NICER observations show large variations from 200 NICER counts per second to 14 counts per second within a week. The nature of this source, based on this initial analysis (and on obsevations in other wavebands), is uncertain, and additional observations are planned.
[More NICER News]