ASTROSAT CZTI

Data Quality Report

Orbit 26213

Creation date: 2024-06-27T19:26:10.643034
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/AS1C05_019T04_9000003788_26213cztM0_level2.evt modeM0/AS1C05_019T04_9000003788_26213cztM0_level2_quad_clean.evt
Size (bytes)440,182,080137,753,280
Size419.8 MB 131.4 MB
Events in quadrant A3,297,060940,990
Events in quadrant B3,220,053972,527
Events in quadrant C3,165,850915,287
Events in quadrant D3,217,387901,611

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137170
B0134590
C0132920
D0135340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6332480.758054%
B6333340.536870%
C6333510.805306%
D6333270.426338%

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 7687 6333 19 19 0.25% 0.30%
B 7688 6334 0 0 0.00% 0.00%
C 7688 6334 0 0 0.00% 0.00%
D 7688 6334 11 11 0.14% 0.17%

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 13 178646 1119.27 807 793 158.9
A 13 254 10726 62.51 807 793 158.9
A 0 226 6987 38.98 807 793 158.9
B 5 172 30379 197.55 809 787 149.8
B 0 190 29596 192.32 809 787 149.8
B 12 111 17484 111.47 809 787 149.8
C 14 238 126571 703.18 773 777 178.9
C 3 233 15243 80.86 773 777 178.9
C 0 10 6511 32.05 773 777 178.9
D 1 52 262952 1421.39 775 757 184.5
D 2 234 27713 146.13 775 757 184.5
D 2 153 9921 49.68 775 757 184.5

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