ASTROSAT CZTI

Data Quality Report

Orbit 07236

Creation date: 2024-06-27T15:17:10.350934
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/AS1G05_246T03_9000000990_07236cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07236cztM0_level2_quad_clean.evt
Size (bytes)476,807,040103,942,080
Size454.7 MB 99.1 MB
Events in quadrant A3,149,381684,279
Events in quadrant B3,327,340710,407
Events in quadrant C3,339,685695,458
Events in quadrant D4,198,355620,507

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134493
B0140632
C0140542
D0168292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6261240.383325%
B6261450.718735%
C6261230.367353%
D62613635.797796%

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 7586 6262 1 1 0.01% 0.02%
B 7586 6262 4 4 0.05% 0.06%
C 7586 6262 0 0 0.00% 0.00%
D 7586 6262 328 328 4.32% 5.24%

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 138215 886.79 762 748 155.0
A 3 1 58334 371.48 762 748 155.0
A 14 238 11711 70.72 762 748 155.0
B 10 16 151081 1033.68 778 761 145.4
B 0 214 78704 535.98 778 761 145.4
B 4 81 40245 271.51 778 761 145.4
C 9 68 402599 2331.66 750 754 172.3
C 12 4 7891 41.41 750 754 172.3
C 13 61 5999 30.43 750 754 172.3
D 13 105 744604 4240.28 712 690 175.4
D 2 216 435521 2478.52 712 690 175.4
D 2 14 204973 1164.4 712 690 175.4

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