ASTROSAT CZTI

Data Quality Report

Orbit 27589

Creation date: 2024-06-27T19:41:48.938804
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_019T04_9000003974_27589cztM0_level2.evt modeM0/AS1C05_019T04_9000003974_27589cztM0_level2_quad_clean.evt
Size (bytes)489,386,880120,862,080
Size466.7 MB 115.3 MB
Events in quadrant A3,240,816817,515
Events in quadrant B3,340,257840,060
Events in quadrant C3,339,780798,081
Events in quadrant D4,465,392758,033

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136190
B0139910
C0139770
D0176300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6400671.046875%
B6400711.109375%
C64001191.859375%
D64002704.218750%

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 7760 6401 4 4 0.05% 0.06%
B 7760 6401 0 0 0.00% 0.00%
C 7760 6401 0 0 0.00% 0.00%
D 7760 6401 135 135 1.74% 2.11%

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 8 192 14697 83.93 836 822 165.3
A 13 254 10990 61.51 836 822 165.3
A 3 137 7432 39.98 836 822 165.3
B 12 111 18450 113.86 839 820 154.8
B 15 32 18076 111.45 839 820 154.8
B 11 111 16616 102.02 839 820 154.8
C 14 238 132867 714.42 804 811 184.8
C 2 16 58771 313.56 804 811 184.8
C 1 16 6057 28.38 804 811 184.8
D 1 52 1324676 7206.91 789 772 183.7
D 2 250 93121 502.72 789 772 183.7
D 7 80 24969 131.72 789 772 183.7

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