ASTROSAT CZTI

Data Quality Report

Orbit 32955

Creation date: 2024-06-27T20:43:50.724728
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/AS1C07_001T01_9000004752_32955cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32955cztM0_level2_quad_clean.evt
Size (bytes)570,156,480104,817,600
Size543.7 MB 100.0 MB
Events in quadrant A2,599,721730,743
Events in quadrant B4,716,457684,593
Events in quadrant C2,783,406719,143
Events in quadrant D6,780,412639,581

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115213
B0178322
C0120972
D0242672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A571840.069955%
B571877113.483736%
C5718540.944386%
D571878313.693599%

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 7361 5719 0 0 0.00% 0.00%
B 7361 5718 509 509 6.91% 8.90%
C 7361 5719 39 39 0.53% 0.68%
D 7361 5719 661 661 8.98% 11.56%

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 6 14691 104.44 664 651 134.4
A 13 254 10832 75.74 664 651 134.4
A 9 143 8268 56.66 664 651 134.4
B 5 172 1916995 16298.97 624 608 117.6
B 0 229 166471 1410.67 624 608 117.6
B 5 200 59824 503.64 624 608 117.6
C 0 10 145027 973.6 646 651 148.3
C 1 241 45591 303.05 646 651 148.3
C 3 233 16284 105.42 646 651 148.3
D 8 195 1662948 10460.02 610 598 158.9
D 7 80 1378367 8669.35 610 598 158.9
D 12 233 466088 2929.01 610 598 158.9

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