ASTROSAT CZTI

Data Quality Report

Orbit 53078

Creation date: 2025-07-21T12:34:18.252822
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/AS1C09_011T07_9000006488_53078cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53078cztM0_level2_quad_clean.evt
Size (bytes)857,727,36064,353,600
Size818.0 MB 61.4 MB
Events in quadrant A14,746,30727,587
Events in quadrant B3,419,147602,356
Events in quadrant C7,828,431420,712
Events in quadrant D5,297,800483,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0477741
B0145552
C0272631
D0199671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5921570996.419524%
B59202143.614865%
C5920161927.347973%
D59205679.577703%

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 7150 5920 5112 5112 71.50% 86.35%
B 7150 5921 155 155 2.17% 2.62%
C 7150 5921 1469 1469 20.55% 24.81%
D 7150 5921 547 547 7.65% 9.24%

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 9 191 13337195 208706.2 250 244 63.9
A 13 248 138194 2158.74 250 244 63.9
A 0 8 103292 1612.57 250 244 63.9
B 1 255 805335 6342.24 597 579 126.9
B 10 247 42167 327.75 597 579 126.9
B 4 81 30705 237.42 597 579 126.9
C 15 224 2638394 18388.22 515 509 143.5
C 1 241 2516539 17538.79 515 509 143.5
C 7 80 124809 866.47 515 509 143.5
D 8 176 1304770 8037.29 562 536 162.3
D 12 17 603786 3717.51 562 536 162.3
D 1 241 397793 2448.08 562 536 162.3

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