ASTROSAT CZTI

Data Quality Report

Orbit 13383

Creation date: 2024-06-27T16:39:58.028218
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_103T01_9000001988_13383cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13383cztM0_level2_quad_clean.evt
Size (bytes)511,211,52077,463,360
Size487.5 MB 73.9 MB
Events in quadrant A3,220,054472,946
Events in quadrant B3,380,851481,614
Events in quadrant C3,400,570471,552
Events in quadrant D5,016,576442,810

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140003
B0143102
C0144552
D0194072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6835620.907096%
B6835701.024140%
C6835520.760790%
D68353725.442575%

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 7716 6837 0 0 0.00% 0.00%
B 7716 6837 13 13 0.17% 0.19%
C 7716 6837 2 2 0.03% 0.03%
D 7716 6837 302 302 3.91% 4.42%

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 1 162 21008 120.61 823 804 167.5
A 9 143 10801 59.68 823 804 167.5
A 1 178 8236 44.37 823 804 167.5
B 3 64 45776 284.34 825 802 158.2
B 0 214 30829 189.84 825 802 158.2
B 3 209 22477 137.03 825 802 158.2
C 14 220 139243 741.34 808 814 186.7
C 3 233 89963 477.42 808 814 186.7
C 8 128 12152 60.72 808 814 186.7
D 1 52 1777031 9349.7 789 766 190.0
D 5 222 102279 534.33 789 766 190.0
D 2 136 67907 353.41 789 766 190.0

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