ASTROSAT CZTI

Data Quality Report

Orbit 23695

Creation date: 2024-06-27T18:57:37.058604
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/AS1C05_012T03_9000003500_23695cztM0_level2.evt modeM0/AS1C05_012T03_9000003500_23695cztM0_level2_quad_clean.evt
Size (bytes)481,596,480123,600,960
Size459.3 MB 117.9 MB
Events in quadrant A2,969,553833,531
Events in quadrant B3,173,539865,515
Events in quadrant C3,109,842836,783
Events in quadrant D4,919,773783,203

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127322
B0132772
C0130762
D0189152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6072190.312912%
B6072290.477602%
C6072560.922266%
D60722113.474967%

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 7452 6073 0 0 0.00% 0.00%
B 7452 6073 0 0 0.00% 0.00%
C 7452 6073 0 0 0.00% 0.00%
D 7452 6072 106 106 1.42% 1.75%

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 9508 57.42 770 756 152.4
A 0 226 6494 37.64 770 756 152.4
A 3 137 6292 36.32 770 756 152.4
B 0 183 36388 249.09 781 763 143.0
B 0 189 20177 135.74 781 763 143.0
B 12 111 16739 111.7 781 763 143.0
C 14 238 122208 693.29 761 766 175.2
C 7 247 18440 100.9 761 766 175.2
C 13 61 5155 25.06 761 766 175.2
D 13 174 1505187 8389.07 745 726 179.3
D 1 52 427955 2382.28 745 726 179.3
D 9 35 113470 628.68 745 726 179.3

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