ASTROSAT CZTI

Data Quality Report

Orbit 30206

Creation date: 2024-06-27T20:12:13.374885
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/AS1A10_071T15_9000004346_30206cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30206cztM0_level2_quad_clean.evt
Size (bytes)520,107,84092,592,000
Size496.0 MB 88.3 MB
Events in quadrant A3,163,732599,475
Events in quadrant B4,915,361603,880
Events in quadrant C3,242,251581,461
Events in quadrant D3,991,694567,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136332
B0194882
C0138542
D0162712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6469651.004792%
B6468781.205937%
C6468991.530612%
D6468841.298701%

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 7574 6470 2 2 0.03% 0.03%
B 7573 6468 0 0 0.00% 0.00%
C 7573 6469 1 1 0.01% 0.02%
D 7573 6469 68 68 0.90% 1.05%

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 24281 143.94 812 796 163.2
A 13 254 11163 63.54 812 796 163.2
A 3 137 8297 45.97 812 796 163.2
B 6 159 1761116 11436.28 803 783 153.9
B 12 111 19179 119.51 803 783 153.9
B 11 111 17546 108.9 803 783 153.9
C 14 238 129414 699.09 784 789 184.0
C 10 22 24834 130.69 784 789 184.0
C 2 114 15171 78.17 784 789 184.0
D 8 195 333053 1700.03 784 767 195.5
D 7 223 269800 1376.42 784 767 195.5
D 13 104 193118 984.1 784 767 195.5

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