ASTROSAT CZTI

Data Quality Report

Orbit 24363

Creation date: 2024-06-27T19:05:12.577471
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_145T01_9000003594_24363cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24363cztM0_level2_quad_clean.evt
Size (bytes)366,537,60056,678,400
Size349.6 MB 54.1 MB
Events in quadrant A1,998,131356,748
Events in quadrant B2,043,381371,428
Events in quadrant C2,108,269358,497
Events in quadrant D4,667,481336,794

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100941441
B0101851515
C0102151416
D0210954358

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131
B0131
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09711
B09816
C09810
D09810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4198160.381134%
B4165320.768307%
C4215661.565836%
D399468017.025538%

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 6050 4472 0 0 0.00% 0.00%
B 6033 4447 2 2 0.03% 0.04%
C 6041 4483 0 0 0.00% 0.00%
D 5952 4314 429 429 7.21% 9.94%

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 6412 56.44 518 507 104.6
A 3 137 4473 37.9 518 507 104.6
A 0 226 4429 37.48 518 507 104.6
B 6 36 14147 137.43 516 503 99.3
B 12 111 11377 109.53 516 503 99.3
B 11 111 10333 99.02 516 503 99.3
C 14 238 82070 694.4 501 505 117.5
C 7 247 42242 355.32 501 505 117.5
C 3 233 22079 183.67 501 505 117.5
D 9 35 2337671 21099.06 455 441 110.8
D 9 19 319283 2878.31 455 441 110.8
D 12 233 84628 759.99 455 441 110.8

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