ASTROSAT CZTI

Data Quality Report

Orbit 32064

Creation date: 2024-06-27T20:35:30.242743
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/AS1A10_109T01_9000004678_32064cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32064cztM0_level2_quad_clean.evt
Size (bytes)663,212,16085,412,160
Size632.5 MB 81.5 MB
Events in quadrant A3,494,313565,524
Events in quadrant B5,686,963553,037
Events in quadrant C4,262,689527,865
Events in quadrant D6,209,003492,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138240
B0211271
C0165340
D0227820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6418951.480212%
B64172824.394577%
C64173645.672433%
D64173715.781518%

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 7573 6418 0 0 0.00% 0.00%
B 7572 6417 37 37 0.49% 0.58%
C 7572 6417 128 128 1.69% 1.99%
D 7572 6417 245 245 3.24% 3.82%

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 11430 58.62 906 891 179.8
A 3 137 8366 41.58 906 891 179.8
A 0 226 7540 36.98 906 891 179.8
B 6 159 1626758 9802.2 882 865 165.9
B 10 245 428436 2577.74 882 865 165.9
B 5 172 145113 869.64 882 865 165.9
C 0 10 718277 3719.14 836 845 192.9
C 14 238 154817 798.18 836 845 192.9
C 4 175 46022 234.2 836 845 192.9
D 12 79 1801547 8910.51 847 827 202.1
D 8 195 514116 2539.91 847 827 202.1
D 12 233 276168 1362.47 847 827 202.1

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