ASTROSAT CZTI

Data Quality Report

Orbit 05599

Creation date: 2024-06-27T14:57:03.597427
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/AS1A02_028T01_9000000724_05599cztM0_level2.evt modeM0/AS1A02_028T01_9000000724_05599cztM0_level2_quad_clean.evt
Size (bytes)558,504,00063,123,840
Size532.6 MB 60.2 MB
Events in quadrant A3,325,980370,081
Events in quadrant B3,746,392372,580
Events in quadrant C3,254,653364,731
Events in quadrant D6,129,096331,968

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140983
B0154342
C0140562
D0229062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67631472.173592%
B67631662.454532%
C67631061.567352%
D67632093.090345%

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 8948 6763 0 0 0.00% 0.00%
B 8948 6764 1 1 0.01% 0.01%
C 8948 6764 0 0 0.00% 0.00%
D 8948 6764 40 40 0.45% 0.59%

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 14 26479 147.06 856 836 174.4
A 0 226 8377 43.25 856 836 174.4
A 12 194 8124 41.79 856 836 174.4
B 8 3 264584 1599.42 858 838 164.9
B 15 204 155438 937.53 858 838 164.9
B 12 111 15755 90.46 858 838 164.9
C 1 16 19130 95.61 824 828 191.4
C 8 128 9179 43.62 824 828 191.4
C 13 61 6609 30.2 824 828 191.4
D 2 63 2748379 13839.0 814 788 198.5
D 11 241 128566 643.59 814 788 198.5
D 2 136 114345 571.96 814 788 198.5

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