ASTROSAT CZTI

Data Quality Report

Orbit 28430

Creation date: 2024-06-27T19:51:40.053335
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/AS1A10_101T21_9000004090_28430cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28430cztM0_level2_quad_clean.evt
Size (bytes)529,107,840112,158,720
Size504.6 MB 107.0 MB
Events in quadrant A3,127,779753,622
Events in quadrant B3,282,525773,091
Events in quadrant C3,286,093751,758
Events in quadrant D5,901,827680,291

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133020
B0136750
C0137410
D0217450

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275631.003984%
B6275851.354582%
C62751472.342629%
D627584813.513944%

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 7595 6276 0 0 0.00% 0.00%
B 7595 6275 0 0 0.00% 0.00%
C 7595 6275 0 0 0.00% 0.00%
D 7594 6275 727 727 9.57% 11.59%

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 13 254 10767 62.25 807 791 160.2
A 8 192 8744 49.63 807 791 160.2
A 3 137 7575 42.33 807 791 160.2
B 10 245 40186 262.85 809 789 149.9
B 0 230 30095 195.53 809 789 149.9
B 0 190 22424 144.35 809 789 149.9
C 14 238 130114 714.53 792 800 181.0
C 7 220 41485 224.81 792 800 181.0
C 3 233 10816 55.34 792 800 181.0
D 1 52 2134999 12110.99 750 731 176.2
D 8 195 441386 2500.51 750 731 176.2
D 2 250 207082 1170.95 750 731 176.2

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