ASTROSAT CZTI

Data Quality Report

Orbit 04605

Creation date: 2024-06-27T14:44:44.692911
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/AS1SLEW_01234_9000000575_04605cztM0_level2.evt modeM0/AS1SLEW_01234_9000000575_04605cztM0_level2_quad_clean.evt
Size (bytes)59,880,9602,954,880
Size57.1 MB 2.8 MB
Events in quadrant A414,8346,573
Events in quadrant B423,4406,320
Events in quadrant C426,5156,662
Events in quadrant D491,9776,752

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016960
B017280
C017060
D019860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78440.510204%
B78440.510204%
C78420.255102%
D78450.637755%

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 784 784 0 0 0.00% 0.00%
B 784 784 0 0 0.00% 0.00%
C 784 784 0 0 0.00% 0.00%
D 784 784 0 0 0.00% 0.00%

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 15 174 12761 532.47 103 101 23.8
A 3 1 1309 50.81 103 101 23.8
A 0 226 1026 38.9 103 101 23.8
B 14 167 4500 192.74 104 101 22.8
B 15 204 4332 185.38 104 101 22.8
B 10 16 4084 174.51 104 101 22.8
C 14 48 19799 754.51 103 104 26.1
C 13 61 783 26.01 103 104 26.1
C 14 237 780 25.9 103 104 26.1
D 13 235 86973 3183.21 103 100 27.3
D 2 136 11714 425.56 103 100 27.3
D 10 15 3142 111.47 103 100 27.3

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