ASTROSAT CZTI

Data Quality Report

Orbit 29732

Creation date: 2024-06-27T20:07:14.382099
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/AS1A10_007T01_9000004276_29732cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29732cztM0_level2_quad_clean.evt
Size (bytes)652,248,00094,916,160
Size622.0 MB 90.5 MB
Events in quadrant A3,097,274637,097
Events in quadrant B5,030,003648,233
Events in quadrant C5,190,398597,019
Events in quadrant D6,040,371582,263

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127221
B0186191
C0197291
D0222151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5867591.005625%
B58681412.402863%
C586771712.220897%
D58673145.351969%

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 7182 5867 0 0 0.00% 0.00%
B 7183 5868 0 0 0.00% 0.00%
C 7182 5867 39 39 0.54% 0.66%
D 7182 5867 279 279 3.88% 4.76%

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 11202 65.53 802 788 158.9
A 3 137 7462 42.0 802 788 158.9
A 0 226 6761 37.59 802 788 158.9
B 6 159 1777211 11919.56 801 784 149.0
B 15 32 44209 291.38 801 784 149.0
B 0 229 22117 143.14 801 784 149.0
C 3 233 1830961 10700.18 743 751 171.0
C 14 238 212443 1237.64 743 751 171.0
C 14 254 129640 753.54 743 751 171.0
D 8 195 2128475 11676.24 763 746 182.2
D 7 80 744237 4080.02 763 746 182.2
D 13 104 186424 1018.94 763 746 182.2

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