ASTROSAT CZTI

Data Quality Report

Orbit 06284

Creation date: 2024-06-27T15:05:11.964095
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/AS1A02_118T01_9000000826_06284cztM0_level2.evt modeM0/AS1A02_118T01_9000000826_06284cztM0_level2_quad_clean.evt
Size (bytes)569,980,800108,063,360
Size543.6 MB 103.1 MB
Events in quadrant A4,027,793714,233
Events in quadrant B4,268,139712,132
Events in quadrant C2,896,835716,312
Events in quadrant D5,612,933660,572

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163472
B0171881
C0136801
D0212331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67351021.514477%
B67353605.345212%
C6735200.296956%
D67355588.285078%

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 7600 6735 1 1 0.01% 0.01%
B 7600 6735 217 217 2.86% 3.22%
C 7600 6735 0 0 0.00% 0.00%
D 7600 6735 585 585 7.70% 8.69%

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 924371 5938.38 763 746 155.5
A 15 236 109961 702.19 763 746 155.5
A 15 174 26639 166.48 763 746 155.5
B 3 64 777533 5424.43 756 737 143.2
B 0 219 334904 2333.51 756 737 143.2
B 15 204 99590 690.3 756 737 143.2
C 1 16 8358 44.79 738 739 170.1
C 9 54 7435 39.37 738 739 170.1
C 13 61 5941 30.58 738 739 170.1
D 12 220 2255429 12880.76 718 696 175.0
D 12 110 229272 1305.8 718 696 175.0
D 2 152 149585 850.57 718 696 175.0

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