ASTROSAT CZTI

Data Quality Report

Orbit 09190

Creation date: 2024-06-27T15:42:30.325201
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/AS1C02_041T02_9000001282_09190cztM0_level2.evt modeM0/AS1C02_041T02_9000001282_09190cztM0_level2_quad_clean.evt
Size (bytes)473,100,48086,117,760
Size451.2 MB 82.1 MB
Events in quadrant A4,055,480547,436
Events in quadrant B3,176,615564,502
Events in quadrant C2,890,764549,097
Events in quadrant D3,788,685518,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163003
B0133062
C0125384
D0152078

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6139671.091383%
B6139250.407232%
C613880.130336%
D6137330.537722%

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 7499 6139 8 8 0.11% 0.13%
B 7498 6138 0 0 0.00% 0.00%
C 7498 6137 0 0 0.00% 0.00%
D 7498 6138 28 28 0.37% 0.46%

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 5 845290 5560.52 759 745 151.9
A 1 162 124293 813.45 759 745 151.9
A 3 1 28410 182.15 759 745 151.9
B 8 234 42293 282.68 773 755 146.9
B 0 219 24063 158.62 773 755 146.9
B 0 245 21700 142.54 773 755 146.9
C 13 61 5650 28.77 740 746 170.5
C 8 222 5459 27.65 740 746 170.5
C 3 202 1879 6.65 740 746 170.5
D 1 20 418890 2339.48 730 706 178.8
D 1 52 256711 1432.19 730 706 178.8
D 12 227 120821 671.97 730 706 178.8

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