ASTROSAT CZTI

Data Quality Report

Orbit 28429

Creation date: 2024-06-27T19:51:39.192925
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_28429cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28429cztM0_level2_quad_clean.evt
Size (bytes)563,195,520110,473,920
Size537.1 MB 105.4 MB
Events in quadrant A3,282,538744,562
Events in quadrant B3,443,065763,896
Events in quadrant C3,328,227743,488
Events in quadrant D6,589,889668,156

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137280
B0141290
C0138910
D0237830

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6093891.460693%
B60931232.018710%
C60921622.659225%
D609289214.642154%

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 7428 6093 0 0 0.00% 0.00%
B 7428 6093 23 23 0.31% 0.38%
C 7427 6092 0 0 0.00% 0.00%
D 7427 6092 723 723 9.73% 11.87%

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 6 16 107681 667.2 820 805 160.2
A 13 254 9559 54.65 820 805 160.2
A 8 192 7532 41.99 820 805 160.2
B 15 222 104812 696.45 818 800 149.3
B 10 245 55107 363.63 818 800 149.3
B 0 190 24118 156.14 818 800 149.3
C 14 238 134650 726.13 808 816 184.3
C 7 220 18096 93.75 808 816 184.3
C 3 233 10983 55.16 808 816 184.3
D 1 52 2141721 11946.81 768 750 179.2
D 8 195 618032 3444.49 768 750 179.2
D 7 238 493954 2752.12 768 750 179.2

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