ASTROSAT CZTI

Data Quality Report

Orbit 10408

Creation date: 2024-06-27T15:59:00.252480
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/AS1G07_057T02_9000001504_10408cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10408cztM0_level2_quad_clean.evt
Size (bytes)2,522,456,640485,524,800
Size2.3 GB 463.0 MB
Events in quadrant A16,745,2842,992,340
Events in quadrant B17,667,8782,978,961
Events in quadrant C16,576,4273,041,396
Events in quadrant D22,942,7513,198,510

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177467104030
B0210057135559
C0182774109315
D0224213131323

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015167
B016884
C016784
D015167

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018201027
B018181018
C018191015
D01746945

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A358561400.390451%
B340352570.755105%
C36151750.207463%
D389972450.628253%

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 55746 42417 0 0 0.00% 0.00%
B 55746 40876 8 8 0.01% 0.02%
C 55746 42531 1 1 0.00% 0.00%
D 55746 42090 48 48 0.09% 0.11%

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 13 251 189712 216.75 4257 4157 856.1
A 4 2 73293 80.76 4257 4157 856.1
A 0 226 39047 40.76 4257 4157 856.1
B 4 239 946074 1248.16 4045 3948 754.8
B 0 219 317056 414.81 4045 3948 754.8
B 11 51 278649 363.93 4045 3948 754.8
C 14 234 73456 71.35 4227 4257 969.9
C 13 61 31656 28.25 4227 4257 969.9
C 14 67 18081 14.25 4227 4257 969.9
D 8 195 2358192 2199.2 4502 4380 1070.3
D 1 52 1663331 1549.98 4502 4380 1070.3
D 1 20 1261619 1174.66 4502 4380 1070.3

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