ASTROSAT CZTI

Data Quality Report

Orbit 09914

Creation date: 2024-06-27T15:52:25.354084
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/AS1A03_053T01_9000001410_09914cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09914cztM0_level2_quad_clean.evt
Size (bytes)503,553,60066,242,880
Size480.2 MB 63.2 MB
Events in quadrant A4,946,839385,946
Events in quadrant B2,703,635444,137
Events in quadrant C2,457,984430,658
Events in quadrant D4,789,766380,927

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01821784
B0113768
C0107105
D01776918

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A517276114.713844%
B5183601.157631%
C5184120.231481%
D518254010.420687%

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 6546 5185 731 731 11.17% 14.10%
B 6546 5186 3 3 0.05% 0.06%
C 6546 5185 0 0 0.00% 0.00%
D 6546 5186 568 568 8.68% 10.95%

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 15 239 1359908 10816.06 617 605 125.7
A 14 254 1152374 9164.7 617 605 125.7
A 13 251 25924 201.46 617 605 125.7
B 4 81 65774 524.55 655 642 124.2
B 4 239 30886 243.58 655 642 124.2
B 0 219 19561 152.37 655 642 124.2
C 10 22 4874 29.03 627 631 146.2
C 13 61 4775 28.35 627 631 146.2
C 12 4 2992 16.15 627 631 146.2
D 2 33 743817 4884.71 592 576 152.2
D 2 136 587563 3857.78 592 576 152.2
D 8 195 480898 3156.76 592 576 152.2

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