ASTROSAT CZTI

Data Quality Report

Orbit 27963

Creation date: 2024-06-27T19:46:29.482550
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_021T03_9000004038_27963cztM0_level2.evt modeM0/AS1A10_021T03_9000004038_27963cztM0_level2_quad_clean.evt
Size (bytes)489,260,16083,183,040
Size466.6 MB 79.3 MB
Events in quadrant A2,954,318541,621
Events in quadrant B3,832,957546,722
Events in quadrant C3,078,844529,388
Events in quadrant D4,561,767499,554

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121060
B0152490
C0125900
D0174520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5740480.836237%
B5741841.463160%
C5741791.376067%
D57412854.964292%

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 6920 5740 3 3 0.04% 0.05%
B 6921 5741 7 7 0.10% 0.12%
C 6921 5741 1 1 0.01% 0.02%
D 6921 5741 219 219 3.16% 3.81%

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 0 247 14305 90.63 760 747 149.6
A 13 254 10345 64.16 760 747 149.6
A 0 226 7600 45.81 760 747 149.6
B 10 245 787064 5601.99 746 729 140.4
B 15 32 98093 693.64 746 729 140.4
B 12 111 16859 114.91 746 729 140.4
C 14 238 118622 693.99 729 737 169.9
C 2 16 90108 526.13 729 737 169.9
C 15 208 19685 111.55 729 737 169.9
D 1 52 1050205 6100.15 724 706 172.0
D 7 80 455459 2643.23 724 706 172.0
D 8 195 96907 559.16 724 706 172.0

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