ASTROSAT CZTI

Data Quality Report

Orbit 14132

Creation date: 2024-06-27T16:50:47.158190
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_218T04_9000002086_14132cztM0_level2.evt modeM0/AS1A04_218T04_9000002086_14132cztM0_level2_quad_clean.evt
Size (bytes)634,582,080109,065,600
Size605.2 MB 104.0 MB
Events in quadrant A3,889,521687,187
Events in quadrant B4,104,867685,540
Events in quadrant C4,264,014705,892
Events in quadrant D6,414,249664,433

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170823
B0175262
C0175952
D0247102

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80521071.328862%
B80521982.459016%
C8052901.117735%
D80525717.091406%

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 8503 8055 0 0 0.00% 0.00%
B 8503 8055 1 1 0.01% 0.01%
C 8503 8055 1 1 0.01% 0.01%
D 8503 8055 309 309 3.63% 3.84%

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 12 189 41675 197.3 997 975 206.3
A 12 96 12783 57.24 997 975 206.3
A 0 226 8662 37.26 997 975 206.3
B 0 219 49159 248.61 998 970 193.8
B 0 85 49008 247.83 998 970 193.8
B 0 189 31808 159.09 998 970 193.8
C 3 233 423247 1822.19 982 985 231.7
C 14 234 10460 40.89 982 985 231.7
C 13 61 7049 26.17 982 985 231.7
D 1 52 1045115 4583.89 950 927 227.8
D 7 80 1038059 4552.92 950 927 227.8
D 8 195 487751 2137.11 950 927 227.8

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