ASTROSAT CZTI

Data Quality Report

Orbit 14299

Creation date: 2024-06-27T16:53:07.017167
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/AS1A04_231T01_9000002106_14299cztM0_level2.evt modeM0/AS1A04_231T01_9000002106_14299cztM0_level2_quad_clean.evt
Size (bytes)522,083,52076,017,600
Size497.9 MB 72.5 MB
Events in quadrant A3,316,663469,468
Events in quadrant B3,803,078470,288
Events in quadrant C3,794,105471,155
Events in quadrant D4,461,704442,462

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136483
B0153132
C0155562
D0173352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6429410.637735%
B64291302.022087%
C6429530.824389%
D64293485.412972%

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 7700 6431 0 0 0.00% 0.00%
B 7700 6431 41 41 0.53% 0.64%
C 7700 6431 0 0 0.00% 0.00%
D 7700 6430 291 291 3.78% 4.53%

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 12 189 59200 349.44 840 826 167.0
A 8 15 15860 90.0 840 826 167.0
A 0 226 7573 40.39 840 826 167.0
B 0 229 329151 2137.44 835 816 153.6
B 10 245 81407 524.64 835 816 153.6
B 10 244 48574 310.9 835 816 153.6
C 3 233 563396 3039.45 826 831 185.1
C 13 61 6022 28.05 826 831 185.1
C 14 234 5455 24.98 826 831 185.1
D 5 222 425006 2238.04 807 789 189.5
D 12 110 417255 2197.15 807 789 189.5
D 2 14 402597 2119.82 807 789 189.5

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