ASTROSAT CZTI

Data Quality Report

Orbit 20200512_C05_013T04_9000003660_level2

Creation date: 2025-01-04T11:36:02.408414
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/AS1C05_013T04_9000003660cztM0_level2.fits modeM0/AS1C05_013T04_9000003660cztM0_level2_quad_clean.evt
Size (bytes)71,049,60058,461,120
Size67.8 MB 55.8 MB
Events in quadrant A434,038326,130
Events in quadrant B417,038328,783
Events in quadrant C419,510310,552
Events in quadrant D362,658285,659

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155990
B0157110
C0163590
D0183810

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74462984.002149%
B74462833.800698%
C74462423.250067%
D74463204.297609%

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 7801 7447 0 0 0.00% 0.00%
B 7801 7446 0 0 0.00% 0.00%
C 7801 7446 0 0 0.00% 0.00%
D 7801 7446 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 29 469 12.21 112 105 29.8
A 14 188 447 11.47 112 105 29.8
A 14 204 420 10.56 112 105 29.8
B 2 9 318 8.94 110 105 23.8
B 2 245 290 7.77 110 105 23.8
B 14 254 284 7.52 110 105 23.8
C 12 241 321 7.3 110 103 29.9
C 12 242 304 6.73 110 103 29.9
C 3 126 279 5.89 110 103 29.9
D 7 3 287 6.62 103 93 29.3
D 4 246 276 6.24 103 93 29.3
D 3 14 274 6.18 103 93 29.3

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