ASTROSAT CZTI

Data Quality Report

Orbit 23538

Creation date: 2024-06-27T18:55:53.498179
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/AS1A07_011T01_9000003482_23538cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23538cztM0_level2_quad_clean.evt
Size (bytes)421,611,84089,156,160
Size402.1 MB 85.0 MB
Events in quadrant A2,907,707581,816
Events in quadrant B3,251,102585,877
Events in quadrant C2,910,924559,986
Events in quadrant D3,285,881548,178

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123601
B0133201
C0124021
D0137111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6070590.971993%
B6071941.548345%
C6071761.251853%
D6071701.153023%

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 7095 6070 0 0 0.00% 0.00%
B 7096 6071 31 31 0.44% 0.51%
C 7096 6071 2 2 0.03% 0.03%
D 7096 6071 26 26 0.37% 0.43%

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 10920 67.48 752 739 150.9
A 0 226 6622 38.99 752 739 150.9
A 3 137 6400 37.52 752 739 150.9
B 0 189 157565 1125.25 738 721 139.4
B 3 64 128090 913.79 738 721 139.4
B 0 230 22803 158.42 738 721 139.4
C 14 238 115269 694.81 709 711 164.9
C 7 247 15050 86.97 709 711 164.9
C 10 9 6299 33.89 709 711 164.9
D 1 52 398773 2235.05 725 701 178.1
D 9 85 105171 586.57 725 701 178.1
D 2 234 25431 138.85 725 701 178.1

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