ASTROSAT CZTI

Data Quality Report

Orbit 18069

Creation date: 2024-06-27T17:44:38.918703
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/AS1A06_003T04_9000002682_18069cztM0_level2.evt modeM0/AS1A06_003T04_9000002682_18069cztM0_level2_quad_clean.evt
Size (bytes)752,325,120102,064,320
Size717.5 MB 97.3 MB
Events in quadrant A4,618,978674,691
Events in quadrant B3,861,301701,411
Events in quadrant C3,869,997663,893
Events in quadrant D9,889,972491,468

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190332
B0167422
C0167422
D0348672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80254946.155763%
B80251571.956386%
C80261632.030900%
D8026288935.995515%

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 8590 8026 19 19 0.22% 0.24%
B 8590 8027 1 1 0.01% 0.01%
C 8591 8028 0 0 0.00% 0.00%
D 8591 8028 2546 2546 29.64% 31.71%

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 14 111 774253 3944.41 958 934 196.1
A 4 2 87877 443.46 958 934 196.1
A 15 174 74029 372.83 958 934 196.1
B 12 111 22476 113.44 974 948 189.8
B 0 189 20233 101.62 974 948 189.8
B 11 111 19551 98.03 974 948 189.8
C 14 238 144646 650.51 938 942 220.9
C 3 233 58707 261.49 938 942 220.9
C 13 61 6654 25.86 938 942 220.9
D 7 238 6392490 32524.57 803 779 196.5
D 5 222 203364 1030.86 803 779 196.5
D 11 176 91778 463.05 803 779 196.5

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