ASTROSAT CZTI

Data Quality Report

Orbit 03129

Creation date: 2024-06-27T14:25:02.180972
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/AS1T01_118T01_9000000430_03129cztM0_level2.evt modeM0/AS1T01_118T01_9000000430_03129cztM0_level2_quad_clean.evt
Size (bytes)928,123,20061,355,520
Size885.1 MB 58.5 MB
Events in quadrant A4,599,987394,766
Events in quadrant B3,590,570407,085
Events in quadrant C15,084,974180,877
Events in quadrant D4,344,797370,777

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186482
B0154341
C0497231
D0180451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72275557.679535%
B72271592.200083%
C7227531573.543656%
D72273214.441677%

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 7957 7228 318 318 4.00% 4.40%
B 7957 7228 11 11 0.14% 0.15%
C 7957 7227 4283 4283 53.83% 59.26%
D 7957 7228 239 239 3.00% 3.31%

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 12 247 1274342 7532.27 825 805 169.1
A 0 13 64904 379.11 825 805 169.1
A 14 238 33825 195.3 825 805 169.1
B 4 81 59139 348.72 861 842 167.2
B 5 70 38545 225.53 861 842 167.2
B 15 204 34847 203.41 861 842 167.2
C 0 219 12968483 116909.28 474 475 110.9
C 0 235 171227 1539.36 474 475 110.9
C 14 223 54669 488.57 474 475 110.9
D 12 233 650175 3247.96 815 790 199.9
D 13 200 126752 630.01 815 790 199.9
D 13 223 95463 473.52 815 790 199.9

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