ASTROSAT CZTI

Data Quality Report

Orbit 10306

Creation date: 2024-06-27T15:57:41.495347
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/AS1A03_124T01_9000001486_10306cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10306cztM0_level2_quad_clean.evt
Size (bytes)405,233,28062,323,200
Size386.5 MB 59.4 MB
Events in quadrant A2,923,629386,256
Events in quadrant B3,076,350388,571
Events in quadrant C2,670,619372,192
Events in quadrant D3,225,766352,813

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131831406
B0137401379
C0126101334
D0146981532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172
B0172
C0172
D0183

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012612
B012612
C012513
D012610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5522130.235422%
B5514561.015597%
C553280.144613%
D5516110.199420%

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 7846 5615 0 0 0.00% 0.00%
B 7846 5618 24 24 0.31% 0.43%
C 7846 5633 0 0 0.00% 0.00%
D 7846 5604 4 4 0.05% 0.07%

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 8 15 120893 838.51 721 709 143.3
A 3 1 15235 101.35 721 709 143.3
A 13 251 11363 74.33 721 709 143.3
B 4 239 259869 1949.13 711 697 133.0
B 0 214 17826 128.82 711 697 133.0
B 11 51 14551 104.19 711 697 133.0
C 13 61 5198 28.79 683 690 156.6
C 14 238 4149 22.09 683 690 156.6
C 14 234 2304 10.31 683 690 156.6
D 8 195 383963 2360.12 681 663 162.4
D 1 20 168601 1034.06 681 663 162.4
D 2 234 21727 129.7 681 663 162.4

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