ASTROSAT CZTI

Data Quality Report

Orbit 15383

Creation date: 2024-06-27T17:07:46.398018
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/AS1C03_001T01_9000002270_15383cztM0_level2.evt modeM0/AS1C03_001T01_9000002270_15383cztM0_level2_quad_clean.evt
Size (bytes)609,779,520109,172,160
Size581.5 MB 104.1 MB
Events in quadrant A5,857,585681,749
Events in quadrant B3,447,235757,210
Events in quadrant C2,988,116750,394
Events in quadrant D5,764,616693,720

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214622
B0140221
C0124701
D0212501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6048123020.337302%
B60481622.678571%
C6048420.694444%
D60486009.920635%

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 7144 6049 731 731 10.23% 12.08%
B 7144 6049 47 47 0.66% 0.78%
C 7144 6049 0 0 0.00% 0.00%
D 7144 6049 551 551 7.71% 9.11%

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 14 238 2559467 19074.04 667 652 134.2
A 14 237 620353 4619.4 667 652 134.2
A 3 80 87641 648.44 667 652 134.2
B 10 245 170238 1255.72 720 704 135.0
B 10 16 115862 852.96 720 704 135.0
B 8 3 89155 655.14 720 704 135.0
C 3 233 227340 1405.04 705 709 161.3
C 7 247 5356 28.81 705 709 161.3
C 13 61 5111 27.29 705 709 161.3
D 13 122 1761752 10462.05 694 672 168.3
D 4 95 878553 5215.23 694 672 168.3
D 2 33 198602 1175.84 694 672 168.3

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