ASTROSAT CZTI

Data Quality Report

Orbit 22607

Creation date: 2024-06-27T18:43:28.912275
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_049T01_9000003358_22607cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22607cztM0_level2_quad_clean.evt
Size (bytes)295,611,84068,659,200
Size281.9 MB 65.5 MB
Events in quadrant A2,134,971459,043
Events in quadrant B2,166,282463,349
Events in quadrant C2,200,884427,458
Events in quadrant D2,159,981429,541

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091571
B091671
C092531
D092971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4254581.363423%
B4254671.574988%
C4254801.880583%
D4254511.198872%

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 5464 4255 0 0 0.00% 0.00%
B 5464 4255 0 0 0.00% 0.00%
C 5464 4255 0 0 0.00% 0.00%
D 5464 4255 5 5 0.09% 0.12%

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 13 254 7030 58.57 552 541 110.8
A 11 47 5430 44.13 552 541 110.8
A 0 226 4834 38.75 552 541 110.8
B 12 111 11990 110.25 547 534 103.9
B 11 111 10548 96.38 547 534 103.9
B 0 197 9219 83.59 547 534 103.9
C 14 238 84164 688.77 522 526 121.4
C 10 222 77020 629.93 522 526 121.4
C 0 10 4616 33.68 522 526 121.4
D 1 52 91193 690.62 536 519 131.3
D 1 239 18026 133.34 536 519 131.3
D 2 234 17105 126.33 536 519 131.3

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