ASTROSAT CZTI

Data Quality Report

Orbit 06062

Creation date: 2024-06-27T15:02:17.076102
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/AS1G06_024T01_9000000780_06062cztM0_level2.evt modeM0/AS1G06_024T01_9000000780_06062cztM0_level2_quad_clean.evt
Size (bytes)162,685,44042,831,360
Size155.1 MB 40.8 MB
Events in quadrant A1,197,454287,305
Events in quadrant B1,408,968287,967
Events in quadrant C1,006,214284,764
Events in quadrant D1,157,440272,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050500
B057280
C046490
D050270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A227150.220167%
B2271773.390577%
C227110.044033%
D2271381.673272%

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 2271 2271 0 0 0.00% 0.00%
B 2271 2271 48 48 2.11% 2.11%
C 2271 2271 0 0 0.00% 0.00%
D 2271 2271 22 22 0.97% 0.97%

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 15 139519 2395.19 274 270 58.1
A 0 226 2692 41.66 274 270 58.1
A 12 194 2635 40.68 274 270 58.1
B 3 64 304827 5683.9 270 264 53.6
B 0 219 20669 380.81 270 264 53.6
B 4 81 14104 258.29 270 264 53.6
C 9 54 4172 63.87 256 257 61.3
C 13 61 2073 29.62 256 257 61.3
C 9 16 1425 19.05 256 257 61.3
D 2 206 74136 1130.14 258 250 65.4
D 12 221 44772 681.0 258 250 65.4
D 2 14 16606 250.18 258 250 65.4

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