ASTROSAT CZTI

Data Quality Report

Orbit 12305

Creation date: 2024-06-27T16:25:13.176783
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/AS1A04_183T02_9000001816_12305cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12305cztM0_level2_quad_clean.evt
Size (bytes)509,212,80084,850,560
Size485.6 MB 80.9 MB
Events in quadrant A4,161,555526,156
Events in quadrant B3,944,809535,192
Events in quadrant C3,263,384533,104
Events in quadrant D3,596,832507,605

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168353
B0158832
C0140432
D0150612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67052002.982849%
B67052864.265474%
C67051141.700224%
D67051702.535421%

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 7631 6707 4 4 0.05% 0.06%
B 7631 6707 48 48 0.63% 0.72%
C 7631 6707 5 5 0.07% 0.07%
D 7631 6707 34 34 0.45% 0.51%

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 11 29 177109 1017.61 845 829 173.2
A 1 162 162473 933.12 845 829 173.2
A 0 23 159334 915.0 845 829 173.2
B 4 239 316766 1955.86 843 824 161.5
B 0 85 205432 1266.64 843 824 161.5
B 11 51 51888 316.11 843 824 161.5
C 14 234 51048 262.54 821 826 191.3
C 4 254 11609 56.37 821 826 191.3
C 13 61 5861 26.32 821 826 191.3
D 1 52 189194 963.09 814 793 195.6
D 13 249 104043 527.81 814 793 195.6
D 11 129 54752 275.83 814 793 195.6

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