ASTROSAT CZTI

Data Quality Report

Orbit 22102

Creation date: 2024-06-27T18:36:25.698071
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_007T05_9000003274_22102cztM0_level2.evt modeM0/AS1A07_007T05_9000003274_22102cztM0_level2_quad_clean.evt
Size (bytes)507,312,00072,141,120
Size483.8 MB 68.8 MB
Events in quadrant A3,393,586453,801
Events in quadrant B3,421,314460,554
Events in quadrant C3,332,693429,717
Events in quadrant D4,798,692410,324

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138342
B0139042
C0135542
D0181082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6162921.493022%
B61621001.622850%
C61621091.768906%
D61624867.887050%

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 7467 6163 1 1 0.01% 0.02%
B 7467 6163 0 0 0.00% 0.00%
C 7467 6163 0 0 0.00% 0.00%
D 7467 6163 440 440 5.89% 7.14%

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 5 16 14125 76.72 876 863 172.9
A 13 254 10210 54.07 876 863 172.9
A 0 226 7639 39.2 876 863 172.9
B 0 230 30252 182.31 868 851 161.3
B 12 111 18671 110.5 868 851 161.3
B 11 111 16645 97.93 868 851 161.3
C 14 238 132392 702.56 817 825 187.3
C 10 22 12196 60.72 817 825 187.3
C 13 61 5747 26.28 817 825 187.3
D 1 52 1339327 6838.84 819 796 195.7
D 2 16 152852 776.89 819 796 195.7
D 11 176 149873 761.67 819 796 195.7

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