ASTROSAT CZTI

Data Quality Report

Orbit 59093

Creation date: 2026-08-30T06:10:08.840001
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_004T02_9000006600_59093cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59093cztM0_level2_quad_clean.evt
Size (bytes)717,396,48077,886,720
Size684.2 MB 74.3 MB
Events in quadrant A3,424,286642,421
Events in quadrant B4,222,668659,144
Events in quadrant C2,968,507617,591
Events in quadrant D15,451,6741,191

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142202
B0168142
C0132852
D0500872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6273600.956480%
B62733615.754822%
C6274310.494103%
D6274626699.872490%

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 7493 6274 41 41 0.55% 0.65%
B 7493 6274 245 245 3.27% 3.91%
C 7494 6275 17 17 0.23% 0.27%
D 7493 6273 5511 5511 73.55% 87.85%

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 3 14 392368 2313.14 694 679 169.3
A 7 221 95959 562.68 694 679 169.3
A 10 251 88108 516.32 694 679 169.3
B 4 236 473936 3230.17 682 656 146.5
B 6 255 328639 2238.51 682 656 146.5
B 5 236 290812 1980.34 682 656 146.5
C 12 252 81404 426.24 686 679 189.4
C 6 223 75012 392.49 686 679 189.4
C 1 243 35471 183.71 686 679 189.4
D 12 1 15000489 683441.15 69 65 21.9
D 6 239 60986 2775.65 69 65 21.9
D 1 27 57303 2607.85 69 65 21.9

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