ASTROSAT CZTI

Data Quality Report

Orbit 03084

Creation date: 2024-06-27T14:24:26.331631
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/AS1G05_237T03_9000000426_03084cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03084cztM0_level2_quad_clean.evt
Size (bytes)470,327,04072,993,600
Size448.5 MB 69.6 MB
Events in quadrant A3,318,695448,230
Events in quadrant B3,303,249453,294
Events in quadrant C3,957,870445,691
Events in quadrant D3,251,992439,213

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135602
B0134961
C0157801
D0136231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60591732.855257%
B60591151.898003%
C60593085.083347%
D6059771.270837%

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 7239 6060 74 74 1.02% 1.22%
B 7239 6060 26 26 0.36% 0.43%
C 7239 6060 200 200 2.76% 3.30%
D 7239 6060 22 22 0.30% 0.36%

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 0 50 247549 1689.0 727 714 146.1
A 12 247 110523 751.38 727 714 146.1
A 8 15 94356 640.76 727 714 146.1
B 0 230 209345 1483.73 731 715 140.6
B 15 204 79553 560.68 731 715 140.6
B 0 219 53560 375.82 731 715 140.6
C 0 219 428397 2688.25 689 696 159.1
C 14 223 328107 2057.89 689 696 159.1
C 15 208 292068 1831.38 689 696 159.1
D 10 213 215740 1183.48 699 684 181.7
D 10 199 70556 384.51 699 684 181.7
D 10 172 52089 282.89 699 684 181.7

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