ASTROSAT CZTI

Data Quality Report

Orbit 38104

Creation date: 2024-06-27T21:48:26.546879
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_047T09_9000005362_38104cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38104cztM0_level2_quad_clean.evt
Size (bytes)347,454,72091,160,640
Size331.4 MB 86.9 MB
Events in quadrant A2,921,651615,724
Events in quadrant B2,671,801627,748
Events in quadrant C2,900,082594,892
Events in quadrant D3,948,053544,683

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117922
B0115031
C0118271
D0152551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5396240.444774%
B5396400.741290%
C5396280.518903%
D53961763.261675%

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 6858 5397 19 19 0.28% 0.35%
B 6858 5397 22 22 0.32% 0.41%
C 6858 5397 32 32 0.47% 0.59%
D 6858 5397 252 252 3.67% 4.67%

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 323203 2568.53 618 606 125.6
A 12 16 110089 871.71 618 606 125.6
A 13 248 26183 203.65 618 606 125.6
B 0 229 145673 1209.69 612 595 119.9
B 5 172 81538 674.92 612 595 119.9
B 12 111 14827 118.67 612 595 119.9
C 1 23 234680 1655.57 599 604 141.4
C 15 214 220578 1555.83 599 604 141.4
C 0 239 40711 283.67 599 604 141.4
D 1 20 1060194 7181.99 598 581 147.5
D 13 249 152356 1028.72 598 581 147.5
D 12 235 132546 894.45 598 581 147.5

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