ASTROSAT CZTI

Data Quality Report

Orbit 32910

Creation date: 2024-06-27T20:43:21.222320
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/AS1C07_005T01_9000004748_32910cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32910cztM0_level2_quad_clean.evt
Size (bytes)701,242,560109,837,440
Size668.8 MB 104.7 MB
Events in quadrant A2,897,148751,421
Events in quadrant B5,069,000721,432
Events in quadrant C3,595,362762,012
Events in quadrant D9,250,910651,838

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126633
B0191612
C0146442
D0319452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6291100.158957%
B629164310.220951%
C62911171.859800%
D6291121419.297409%

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 7573 6292 0 0 0.00% 0.00%
B 7573 6292 439 439 5.80% 6.98%
C 7573 6292 81 81 1.07% 1.29%
D 7573 6292 1210 1210 15.98% 19.23%

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 14 63 55637 375.56 724 708 146.3
A 13 6 20644 136.31 724 708 146.3
A 15 169 14862 96.77 724 708 146.3
B 5 172 1429368 10928.44 695 678 130.7
B 5 200 560693 4283.71 695 678 130.7
B 0 219 87859 666.87 695 678 130.7
C 0 10 208686 1280.27 705 711 162.4
C 14 67 195727 1200.5 705 711 162.4
C 4 254 136909 838.42 705 711 162.4
D 8 195 4175094 24368.21 662 648 171.3
D 12 233 610094 3557.62 662 648 171.3
D 12 227 458301 2671.54 662 648 171.3

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