ASTROSAT CZTI

Data Quality Report

Orbit 12405

Creation date: 2024-06-27T16:26:47.817211
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/AS1G08_083T02_9000001840_12405cztM0_level2.evt modeM0/AS1G08_083T02_9000001840_12405cztM0_level2_quad_clean.evt
Size (bytes)502,214,40083,335,680
Size478.9 MB 79.5 MB
Events in quadrant A5,115,502522,889
Events in quadrant B3,530,643540,275
Events in quadrant C2,847,048530,587
Events in quadrant D3,304,952506,099

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193983
B0141922
C0124402
D0138282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60652303.792251%
B60652273.742786%
C6065470.774938%
D6065881.450948%

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 7291 6066 56 56 0.77% 0.92%
B 7291 6067 104 104 1.43% 1.71%
C 7291 6068 0 0 0.00% 0.00%
D 7291 6066 31 31 0.43% 0.51%

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 8 15 1537086 10108.21 752 737 152.0
A 13 251 241948 1587.02 752 737 152.0
A 1 162 139862 915.35 752 737 152.0
B 4 239 491921 3445.1 749 732 142.6
B 3 64 38113 262.18 749 732 142.6
B 3 209 26340 179.61 749 732 142.6
C 13 61 5311 27.07 729 733 169.1
C 8 128 4027 19.48 729 733 169.1
C 8 112 2298 9.25 729 733 169.1
D 1 52 387096 2222.16 727 707 173.9
D 10 199 72190 411.11 727 707 173.9
D 13 104 31919 179.5 727 707 173.9

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