ASTROSAT CZTI

Data Quality Report

Orbit 37608

Creation date: 2024-06-27T21:42:07.939647
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/AS1A07_093T23_9000005340_37608cztM0_level2.fits modeM0/AS1A07_093T23_9000005340_37608cztM0_level2_quad_clean.evt
Size (bytes)300,718,08074,594,880
Size286.8 MB 71.1 MB
Events in quadrant A2,547,170497,113
Events in quadrant B2,662,037496,341
Events in quadrant C2,454,159489,666
Events in quadrant D3,098,968443,187

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104652
B0108062
C0100622
D0124032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4735110.232313%
B47351533.231257%
C4735230.485744%
D47352495.258712%

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 6798 4736 7 7 0.10% 0.15%
B 6797 4734 111 111 1.63% 2.34%
C 6797 4734 23 23 0.34% 0.49%
D 6797 4734 237 237 3.49% 5.01%

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 10 83 291147 2544.28 569 559 114.2
A 13 248 18975 161.24 569 559 114.2
A 9 143 14852 125.14 569 559 114.2
B 5 172 344103 3245.92 560 546 105.8
B 0 230 42432 395.74 560 546 105.8
B 5 200 17662 161.71 560 546 105.8
C 15 214 204112 1595.58 547 551 127.6
C 0 10 85544 666.2 547 551 127.6
C 14 254 27161 208.58 547 551 127.6
D 13 249 475381 3686.92 525 509 128.8
D 2 250 201047 1556.98 525 509 128.8
D 2 249 148991 1152.82 525 509 128.8

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