ASTROSAT CZTI

Data Quality Report

Orbit 59330

Creation date: 2026-09-15T05:11:44.464448
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_021T06_9000006606_59330cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59330cztM0_level2_quad_clean.evt
Size (bytes)497,710,080104,659,200
Size474.7 MB 99.8 MB
Events in quadrant A3,798,913696,158
Events in quadrant B5,827,776696,524
Events in quadrant C3,434,620670,409
Events in quadrant D4,803,891606,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168102
B0224252
C0156012
D0193222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71831492.074342%
B718479711.094098%
C7184690.960468%
D71843524.899777%

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 7618 7184 78 78 1.02% 1.09%
B 7619 7185 503 503 6.60% 7.00%
C 7619 7185 42 42 0.55% 0.58%
D 7619 7184 323 323 4.24% 4.50%

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 10 251 270073 1415.95 768 749 190.2
A 7 64 205349 1075.67 768 749 190.2
A 15 233 107415 560.79 768 749 190.2
B 4 236 1635613 10386.65 746 717 157.4
B 4 171 741461 4706.02 746 717 157.4
B 5 185 102236 644.96 746 717 157.4
C 6 13 142875 684.01 759 750 207.8
C 3 233 107732 514.87 759 750 207.8
C 4 5 51626 244.85 759 750 207.8
D 12 2 992128 4775.64 738 705 207.6
D 3 12 624003 3002.4 738 705 207.6
D 2 249 136871 655.91 738 705 207.6

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

TCT plots

Parameter TCT0 TCT_healed
Tct