ASTROSAT CZTI

Data Quality Report

Orbit 54003

Creation date: 2025-09-22T21:11:23.820149
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/AS1A14_041T01_9000006510_54003cztM0_level2.fits modeM0/AS1A14_041T01_9000006510_54003cztM0_level2_quad_clean.evt
Size (bytes)1,132,058,880137,808,000
Size1.1 GB 131.4 MB
Events in quadrant A6,194,464998,625
Events in quadrant B9,681,998937,274
Events in quadrant C7,331,209949,933
Events in quadrant D17,856,135533,066

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263232
B0364052
C0295532
D0604862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A108764404.045605%
B10877180216.567068%
C108772832.601820%
D10877481044.221752%

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 12395 10875 275 275 2.22% 2.53%
B 12397 10877 1361 1361 10.98% 12.51%
C 12397 10877 205 205 1.65% 1.88%
D 12396 10876 4500 4500 36.30% 41.38%

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 15 174 1043003 3693.86 1135 1106 282.1
A 7 14 266914 942.38 1135 1106 282.1
A 0 8 170717 601.33 1135 1106 282.1
B 5 250 2444679 10660.15 1072 1034 229.2
B 4 81 1731899 7550.72 1072 1034 229.2
B 0 213 622192 2709.74 1072 1034 229.2
C 12 250 970977 3192.14 1107 1099 303.8
C 10 171 815208 2679.46 1107 1099 303.8
C 13 3 400761 1315.4 1107 1099 303.8
D 8 176 12850583 53530.77 832 793 240.0
D 6 239 880351 3664.14 832 793 240.0
D 12 2 201311 835.34 832 793 240.0

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