ASTROSAT CZTI

Data Quality Report

Orbit 23810

Creation date: 2024-06-27T18:58:59.019207
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_113T01_9000003526_23810cztM0_level2.evt modeM0/AS1A07_113T01_9000003526_23810cztM0_level2_quad_clean.evt
Size (bytes)671,728,32075,542,400
Size640.6 MB 72.0 MB
Events in quadrant A3,485,942473,208
Events in quadrant B3,834,951482,568
Events in quadrant C3,635,529474,136
Events in quadrant D8,971,111427,358

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144502
B0155462
C0149332
D0309592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6163841.362973%
B61631482.401428%
C61631812.936881%
D6163125120.298556%

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 7523 6163 5 5 0.07% 0.08%
B 7523 6163 48 48 0.64% 0.78%
C 7523 6163 4 4 0.05% 0.06%
D 7523 6163 1052 1052 13.98% 17.07%

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 8 255 23642 128.11 896 881 177.7
A 12 96 12302 64.28 896 881 177.7
A 13 254 10308 53.06 896 881 177.7
B 3 64 338792 2057.97 891 872 164.2
B 12 111 18412 106.82 891 872 164.2
B 11 111 16929 97.79 891 872 164.2
C 14 238 142848 703.93 879 890 201.7
C 0 10 51920 253.04 879 890 201.7
C 2 16 10547 47.89 879 890 201.7
D 8 195 3002050 14932.3 843 823 201.0
D 1 52 1512683 7522.11 843 823 201.0
D 13 174 1155763 5746.29 843 823 201.0

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