ASTROSAT CZTI

Data Quality Report

Orbit 13589

Creation date: 2024-06-27T16:43:06.383743
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_193T01_9000002004_13589cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13589cztM0_level2_quad_clean.evt
Size (bytes)446,276,160127,189,440
Size425.6 MB 121.3 MB
Events in quadrant A2,989,159867,364
Events in quadrant B3,325,318877,747
Events in quadrant C3,105,328869,865
Events in quadrant D3,683,229813,325

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126712
B0137521
C0130091
D0147831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6071390.642398%
B60711011.663647%
C6071380.625927%
D60712143.524955%

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 7276 6071 0 0 0.00% 0.00%
B 7276 6071 34 34 0.47% 0.56%
C 7276 6071 0 0 0.00% 0.00%
D 7276 6071 135 135 1.86% 2.22%

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 18951 119.23 765 751 152.7
A 2 250 14366 89.19 765 751 152.7
A 0 226 7036 41.17 765 751 152.7
B 0 182 125757 895.47 761 743 139.6
B 0 85 99679 708.67 761 743 139.6
B 3 64 53730 379.54 761 743 139.6
C 3 233 149559 871.14 755 759 170.8
C 0 207 7185 37.62 755 759 170.8
C 13 61 5473 27.6 755 759 170.8
D 13 122 271003 1557.56 736 717 173.5
D 1 20 179468 1030.08 736 717 173.5
D 5 222 152418 874.2 736 717 173.5

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