ASTROSAT CZTI

Data Quality Report

Orbit 20191016_A07_010T11_9000003240_level2

Creation date: 2025-12-04T18:00:32.247555
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_010T11_9000003240cztM0_level2.fits modeM0/AS1A07_010T11_9000003240cztM0_level2_quad_clean.evt
Size (bytes)341,979,840382,625,280
Size326.1 MB 364.9 MB
Events in quadrant A2,095,9362,406,118
Events in quadrant B2,008,8442,404,968
Events in quadrant C2,048,0682,284,386
Events in quadrant D1,656,8261,948,357

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0756500
B0803730
C0764570
D01253840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07520
B07520
C07520
D07520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A370502260.609987%
B370497191.940673%
C370475571.503496%
D37042620916.762054%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 39933 37067 0 0 0.00% 0.00%
B 39933 37056 0 0 0.00% 0.00%
C 39933 37060 0 0 0.00% 0.00%
D 39933 37051 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 29 1892 10.14 545 512 136.1
A 7 110 1764 9.2 545 512 136.1
A 9 19 1615 8.11 545 512 136.1
B 2 9 1622 10.59 531 504 105.6
B 2 8 1410 8.58 531 504 105.6
B 14 254 1345 7.97 531 504 105.6
C 1 81 1572 7.72 538 502 138.6
C 1 80 1561 7.64 538 502 138.6
C 12 241 1494 7.16 538 502 138.6
D 6 231 1225 6.27 472 431 126.5
D 6 67 1212 6.17 472 431 126.5
D 13 238 1188 5.98 472 431 126.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter