ASTROSAT CZTI

Data Quality Report

Orbit 43033

Creation date: 2024-06-27T22:47:09.267382
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/AS1T05_148T01_9000005838_43033cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43033cztM0_level2_quad_clean.evt
Size (bytes)1,176,128,640281,600,640
Size1.1 GB 268.6 MB
Events in quadrant A10,882,9131,940,486
Events in quadrant B10,552,4071,954,903
Events in quadrant C7,810,5491,916,224
Events in quadrant D13,074,2741,628,958

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0530
B0530
C0530
D0530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03240
B03240
C03240
D03240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0427344
B0420514
C0322934
D0498784

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A157364903.113879%
B157375573.539429%
C15737120.076253%
D1573713698.699244%

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 21136 15740 364 364 1.72% 2.31%
B 21137 15740 300 300 1.42% 1.91%
C 21137 15740 4 4 0.02% 0.03%
D 21137 15739 960 960 4.54% 6.10%

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 15 237 2073702 5399.98 1826 1797 383.7
A 10 83 1518474 3952.9 1826 1797 383.7
A 12 189 217720 562.76 1826 1797 383.7
B 0 186 1630655 4551.83 1803 1760 357.9
B 5 255 1329087 3709.12 1803 1760 357.9
B 4 171 261542 725.94 1803 1760 357.9
C 15 214 688692 1599.55 1784 1808 429.4
C 14 254 83679 190.65 1784 1808 429.4
C 0 207 65033 147.23 1784 1808 429.4
D 1 52 4383988 9926.02 1718 1665 441.5
D 13 249 1185992 2682.52 1718 1665 441.5
D 1 47 488413 1102.49 1718 1665 441.5

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