ASTROSAT CZTI

Data Quality Report

Orbit 13591

Creation date: 2024-06-27T16:43:08.286015
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/AS1A04_193T01_9000002004_13591cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13591cztM0_level2_quad_clean.evt
Size (bytes)561,000,960138,248,640
Size535.0 MB 131.8 MB
Events in quadrant A3,268,201963,776
Events in quadrant B4,715,749931,451
Events in quadrant C3,435,650953,860
Events in quadrant D5,133,014887,880

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136162
B0179391
C0141831
D0195271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6456701.084263%
B64565768.921933%
C6456600.929368%
D64565718.844486%

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 7742 6458 1 1 0.01% 0.02%
B 7742 6458 464 464 5.99% 7.18%
C 7742 6458 2 2 0.03% 0.03%
D 7742 6458 411 411 5.31% 6.36%

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 9 143 15649 89.25 838 823 166.1
A 1 162 15289 87.08 838 823 166.1
A 0 226 7671 41.22 838 823 166.1
B 0 182 1368153 9255.24 804 786 147.7
B 3 64 136939 921.57 804 786 147.7
B 0 214 28431 187.12 804 786 147.7
C 3 233 234914 1272.06 813 817 184.0
C 0 207 28811 152.12 813 817 184.0
C 13 61 5933 27.8 813 817 184.0
D 13 122 1479048 7875.4 798 779 187.7
D 13 249 290362 1542.74 798 779 187.7
D 5 222 262727 1395.51 798 779 187.7

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