ASTROSAT CZTI

Data Quality Report

Orbit 54362

Creation date: 2025-10-15T23:33:04.508175
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_126T15_9000006516_54362cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54362cztM0_level2_quad_clean.evt
Size (bytes)834,333,12085,095,360
Size795.7 MB 81.2 MB
Events in quadrant A4,237,503651,952
Events in quadrant B3,564,028728,910
Events in quadrant C6,182,615585,598
Events in quadrant D16,336,724104,938

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180090
B0154430
C0235650
D0534973

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72543795.224704%
B7255260.358374%
C725581911.288766%
D7254612084.367246%

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 7254 7254 326 326 4.49% 4.49%
B 7255 7255 9 9 0.12% 0.12%
C 7255 7255 828 828 11.41% 11.41%
D 7254 7254 5054 5054 69.67% 69.67%

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 1027024 5559.83 746 727 184.6
A 4 249 117212 631.04 746 727 184.6
A 1 241 58717 314.15 746 727 184.6
B 14 167 191889 1188.86 752 725 160.8
B 10 247 77083 474.88 752 725 160.8
B 7 0 70311 432.76 752 725 160.8
C 1 241 1527873 7901.57 703 697 193.3
C 1 16 778913 4026.47 703 697 193.3
C 14 254 351625 1815.69 703 697 193.3
D 8 176 12474729 159343.18 271 258 78.3
D 15 108 2642009 33744.52 271 258 78.3
D 3 12 59951 762.49 271 258 78.3

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