ASTROSAT CZTI

Data Quality Report

Orbit 19063

Creation date: 2024-06-27T17:58:39.089166
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/AS1A05_046T01_9000002834_19063cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19063cztM0_level2_quad_clean.evt
Size (bytes)551,903,040108,616,320
Size526.3 MB 103.6 MB
Events in quadrant A3,326,766715,673
Events in quadrant B3,599,593744,264
Events in quadrant C3,447,531717,963
Events in quadrant D5,892,658650,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138972
B0147732
C0141752
D0221782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6610340.514372%
B6610871.316188%
C6611711.073968%
D66114947.472394%

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 9255 6612 1 1 0.01% 0.02%
B 9255 6612 6 6 0.06% 0.09%
C 9256 6613 0 0 0.00% 0.00%
D 9256 6613 500 500 5.40% 7.56%

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 13 254 7681 39.58 863 848 172.6
A 0 226 7434 38.15 863 848 172.6
A 3 137 6268 31.4 863 848 172.6
B 7 220 86084 522.04 870 851 163.3
B 3 112 75692 458.39 870 851 163.3
B 0 189 19981 117.17 870 851 163.3
C 14 238 132164 668.23 844 854 196.5
C 3 233 17031 82.32 844 854 196.5
C 9 54 7051 31.54 844 854 196.5
D 1 20 2621681 13261.11 823 804 197.6
D 1 52 93513 469.09 823 804 197.6
D 7 238 32545 160.6 823 804 197.6

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