ASTROSAT CZTI

Data Quality Report

Orbit 42468

Creation date: 2024-06-27T22:40:31.954977
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/AS1C07_001T10_9000005806_42468cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42468cztM0_level2_quad_clean.evt
Size (bytes)868,371,840219,758,400
Size828.1 MB 209.6 MB
Events in quadrant A7,360,0171,489,242
Events in quadrant B6,124,0321,498,717
Events in quadrant C7,344,6771,454,302
Events in quadrant D10,229,4421,243,421

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0309143
B0290413
C0314033
D0408103

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14009410.292669%
B14009520.371190%
C14009440.314084%
D1400811298.059680%

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 16665 14011 24 24 0.14% 0.17%
B 16665 14011 26 26 0.16% 0.19%
C 16665 14011 36 36 0.22% 0.26%
D 16664 14010 938 938 5.63% 6.70%

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 10 83 1249491 4131.65 1475 1441 302.1
A 12 189 183662 603.24 1475 1441 302.1
A 13 248 115206 376.62 1475 1441 302.1
B 5 255 91887 323.2 1453 1414 279.9
B 0 186 90564 318.47 1453 1414 279.9
B 15 33 63483 221.73 1453 1414 279.9
C 10 34 717285 2157.22 1426 1433 331.8
C 15 214 577302 1735.38 1426 1433 331.8
C 9 54 349786 1049.76 1426 1433 331.8
D 12 6 1562670 4628.72 1388 1346 337.3
D 12 233 907950 2687.73 1388 1346 337.3
D 1 52 728234 2154.94 1388 1346 337.3

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