ASTROSAT CZTI

Data Quality Report

Orbit 53107

Creation date: 2025-07-28T21:24:09.158616
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_53107cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53107cztM0_level2_quad_clean.evt
Size (bytes)818,714,88079,280,640
Size780.8 MB 75.6 MB
Events in quadrant A11,529,192358,853
Events in quadrant B6,388,122601,558
Events in quadrant C5,369,555552,683
Events in quadrant D6,530,538445,635

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0386291
B0234501
C0204241
D0238281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6321309148.900490%
B632179212.529663%
C63215558.780256%
D6321156724.790381%

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 7526 6321 2879 2879 38.25% 45.55%
B 7526 6322 646 646 8.58% 10.22%
C 7526 6322 555 555 7.37% 8.78%
D 7526 6321 969 969 12.88% 15.33%

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 8379055 62111.72 535 521 134.9
A 3 62 418775 3100.6 535 521 134.9
A 6 248 258161 1909.94 535 521 134.9
B 10 254 1847819 14031.16 620 600 131.7
B 10 128 937244 7114.59 620 600 131.7
B 14 167 403643 3061.45 620 600 131.7
C 15 224 1494299 8604.67 613 605 173.6
C 0 240 402468 2315.0 613 605 173.6
C 1 241 390527 2246.21 613 605 173.6
D 12 3 3660830 23717.55 536 511 154.3
D 3 12 235212 1520.78 536 511 154.3
D 2 120 107274 691.79 536 511 154.3

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