ASTROSAT CZTI

Data Quality Report

Orbit 29006

Creation date: 2024-06-27T19:59:05.654967
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_103T04_9000004158_29006cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29006cztM0_level2_quad_clean.evt
Size (bytes)552,562,560104,734,080
Size527.0 MB 99.9 MB
Events in quadrant A3,146,353715,199
Events in quadrant B3,881,655711,573
Events in quadrant C4,278,998678,418
Events in quadrant D5,017,398643,672

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133791
B0154311
C0172871
D0190761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6054611.007598%
B60552113.484723%
C60551462.411230%
D60552584.260941%

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 7299 6055 0 0 0.00% 0.00%
B 7300 6056 127 127 1.74% 2.10%
C 7300 6056 1 1 0.01% 0.02%
D 7300 6056 173 173 2.37% 2.86%

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 1 113 23685 143.96 803 790 159.0
A 12 210 19904 120.19 803 790 159.0
A 13 254 10811 63.01 803 790 159.0
B 10 245 775540 5311.5 783 765 145.9
B 0 229 24971 165.95 783 765 145.9
B 12 111 17179 112.53 783 765 145.9
C 3 233 1138572 6334.85 770 776 179.6
C 14 238 124024 686.2 770 776 179.6
C 2 114 14894 78.6 770 776 179.6
D 8 195 1071513 5874.81 771 751 182.3
D 1 52 872633 4783.64 771 751 182.3
D 13 104 81036 440.49 771 751 182.3

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