ASTROSAT CZTI

Data Quality Report

Orbit 37596

Creation date: 2024-06-27T21:41:59.618884
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/AS1T05_053T01_9000005338_37596cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37596cztM0_level2_quad_clean.evt
Size (bytes)376,920,00052,724,160
Size359.5 MB 50.3 MB
Events in quadrant A2,661,914309,890
Events in quadrant B2,657,233314,466
Events in quadrant C2,671,162313,982
Events in quadrant D3,068,092290,835

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110483
B0113632
C0110702
D0127992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5234130.248376%
B5234320.611387%
C5234400.764234%
D52341663.171571%

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 7088 5235 8 8 0.11% 0.15%
B 7088 5234 20 20 0.28% 0.38%
C 7088 5235 36 36 0.51% 0.69%
D 7088 5234 164 164 2.31% 3.13%

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 10 83 302600 2534.84 590 578 119.1
A 9 143 20250 165.1 590 578 119.1
A 7 3 18095 147.02 590 578 119.1
B 5 255 113411 989.43 590 575 114.0
B 0 213 45302 392.2 590 575 114.0
B 0 245 33386 287.71 590 575 114.0
C 15 214 228311 1678.92 576 580 135.6
C 0 10 169002 1241.67 576 580 135.6
C 15 159 11835 82.98 576 580 135.6
D 2 249 420236 3009.99 565 549 139.4
D 10 253 107626 767.95 565 549 139.4
D 1 47 102318 729.89 565 549 139.4

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