ASTROSAT CZTI

Data Quality Report

Orbit 41053

Creation date: 2024-06-27T22:23:44.494801
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/AS1A12_029T02_9000005590_41053cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41053cztM0_level2_quad_clean.evt
Size (bytes)322,899,84096,151,680
Size307.9 MB 91.7 MB
Events in quadrant A3,023,404660,832
Events in quadrant B2,558,805677,423
Events in quadrant C3,107,773616,369
Events in quadrant D2,848,602584,472

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121703
B0109152
C0122372
D0119652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5314170.319910%
B5314160.301091%
C53141582.973278%
D5314500.940911%

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 7287 5315 3 3 0.04% 0.06%
B 7287 5315 3 3 0.04% 0.06%
C 7287 5315 143 143 1.96% 2.69%
D 7287 5315 40 40 0.55% 0.75%

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 498700 3832.2 638 625 130.0
A 12 189 54303 413.0 638 625 130.0
A 13 254 7711 54.52 638 625 130.0
B 0 190 53143 438.37 627 612 119.8
B 0 229 27960 228.22 627 612 119.8
B 4 81 16004 128.44 627 612 119.8
C 14 254 379785 2701.07 605 610 140.4
C 15 214 244398 1736.63 605 610 140.4
C 0 10 124067 879.45 605 610 140.4
D 13 249 298470 1990.99 617 599 149.6
D 13 171 48343 319.12 617 599 149.6
D 12 79 45206 298.16 617 599 149.6

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