ASTROSAT CZTI

Data Quality Report

Orbit 28390

Creation date: 2024-06-27T19:51:14.984562
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_045T05_9000004086_28390cztM0_level2.evt modeM0/AS1A10_045T05_9000004086_28390cztM0_level2_quad_clean.evt
Size (bytes)1,084,890,240177,410,880
Size1.0 GB 169.2 MB
Events in quadrant A6,359,2811,128,648
Events in quadrant B6,690,4371,158,177
Events in quadrant C6,438,9511,114,443
Events in quadrant D12,471,3011,055,180

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277980
B0284530
C0278990
D0461930

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132611921.447855%
B132613082.322600%
C132613472.616696%
D1326113059.840887%

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 13511 13262 0 0 0.00% 0.00%
B 13511 13262 5 5 0.04% 0.04%
C 13511 13262 0 0 0.00% 0.00%
D 13511 13262 1046 1046 7.74% 7.89%

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 20274 56.11 1643 1605 332.7
A 3 137 16759 45.55 1643 1605 332.7
A 0 226 13878 36.89 1643 1605 332.7
B 10 245 161153 502.81 1634 1593 317.3
B 10 246 73162 225.53 1634 1593 317.3
B 12 111 40307 122.0 1634 1593 317.3
C 14 238 251183 667.65 1580 1590 373.8
C 7 220 19864 48.88 1580 1590 373.8
C 3 233 14164 33.63 1580 1590 373.8
D 1 52 3896220 10471.94 1538 1493 371.9
D 8 195 2363758 6351.53 1538 1493 371.9
D 2 153 182565 486.86 1538 1493 371.9

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