ASTROSAT CZTI

Data Quality Report

Orbit 59367

Creation date: 2026-09-17T16:13:28.465129
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_033T01_9000006608_59367cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59367cztM0_level2_quad_clean.evt
Size (bytes)504,889,92098,824,320
Size481.5 MB 94.2 MB
Events in quadrant A2,995,791655,862
Events in quadrant B4,423,893687,149
Events in quadrant C3,588,849635,221
Events in quadrant D7,150,358538,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139862
B0178682
C0153532
D0259872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6830771.127379%
B68304055.929722%
C6830911.332357%
D683088112.898975%

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 7810 6830 11 11 0.14% 0.16%
B 7810 6830 225 225 2.88% 3.29%
C 7810 6830 47 47 0.60% 0.69%
D 7810 6830 788 788 10.09% 11.54%

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 0 24 26484 140.17 755 736 183.7
A 14 238 15544 80.61 755 736 183.7
A 3 245 15433 80.01 755 736 183.7
B 4 236 784490 4980.99 735 709 157.4
B 5 185 458266 2907.81 735 709 157.4
B 4 171 113477 716.65 735 709 157.4
C 12 252 294171 1460.9 731 725 200.9
C 14 254 114366 565.75 731 725 200.9
C 6 223 99780 493.14 731 725 200.9
D 12 110 3638828 18219.56 701 671 199.7
D 12 2 383045 1914.89 701 671 199.7
D 3 12 227558 1136.23 701 671 199.7

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