ASTROSAT CZTI

Data Quality Report

Orbit 38007

Creation date: 2024-06-27T21:47:14.402714
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/AS1A11_082T01_9000005356_38007cztM0_level2.fits modeM0/AS1A11_082T01_9000005356_38007cztM0_level2_quad_clean.evt
Size (bytes)1,076,592,960256,726,080
Size1.0 GB 244.8 MB
Events in quadrant A8,683,0941,741,826
Events in quadrant B9,322,0111,731,522
Events in quadrant C7,704,5711,728,299
Events in quadrant D12,939,3251,498,395

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0358935
B0380564
C0326464
D0490114

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03160
B03160
C03160
D03160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15550660.424437%
B155505553.569132%
C15550300.192926%
D1555010836.964630%

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 19759 15553 32 32 0.16% 0.21%
B 19759 15553 375 375 1.90% 2.41%
C 19759 15553 28 28 0.14% 0.18%
D 19759 15553 1000 1000 5.06% 6.43%

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 10 83 978548 2761.99 1759 1726 353.7
A 15 222 391914 1103.27 1759 1726 353.7
A 12 16 291306 818.79 1759 1726 353.7
B 5 184 587985 1765.89 1740 1692 332.0
B 5 255 530321 1592.21 1740 1692 332.0
B 5 200 450426 1351.57 1740 1692 332.0
C 15 214 649434 1615.57 1727 1733 400.9
C 14 254 133223 327.98 1727 1733 400.9
C 0 10 59793 144.82 1727 1733 400.9
D 1 52 2018548 4936.27 1669 1620 408.6
D 7 223 1399063 3420.13 1669 1620 408.6
D 2 249 1118672 2733.9 1669 1620 408.6

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