diff --git a/src/constants.jl b/src/constants.jl
index 4adf666d..3fe519ba 100644
--- a/src/constants.jl
+++ b/src/constants.jl
@@ -1,20 +1,20 @@
-# Internal paths 
+# Internal paths
 
-# Path to NEOs src directory 
+# Path to NEOs src directory
 const src_path = dirname(pathof(NEOs))
-# Path to scratch space 
+# Path to scratch space
 const scratch_path = Ref{String}("")
 
 # URLs
 
-# MPC catalogues file url 
+# MPC catalogues file url
 const mpc_catalogues_url = "https://minorplanetcenter.net/iau/info/CatalogueCodes.html"
-# MPC observatories file url 
+# MPC observatories file url
 const mpc_observatories_url = "https://minorplanetcenter.net/iau/lists/ObsCodes.html"
-# MPC database search url 
+# MPC database search url
 const search_mpc_url = "https://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id="
-# MPC observations url 
-const obs_mpc_url = "https://www.minorplanetcenter.net/tmp/"
+# MPC observations url
+const obs_mpc_url = "https://www.minorplanetcenter.net/tmp2/"
 
 # Abbreviations
 const cte = constant_term
@@ -28,31 +28,31 @@ const μ_DE430 = PE.μ
 const μ_B16_DE430 = μ_DE430[12:27]     # DE430 GM's of 16 most massive asteroids
 const μ_ast343_DE430 = μ_DE430[12:end] # DE430 GM's of 343 main belt asteroids included in DE430 integration
 # Gravitational parameter of the Sun [au^2 / day^3]
-const μ_S = PE.GMS  
+const μ_S = PE.GMS
 
 # Standard value of nominal mean angular velocity of Earth (rad/sec)
 # See Explanatory Supplement to the Astronomical Almanac 2014 Sec 7.4.3.3 p. 296
 const ω = 7.2921151467e-5 # 7.292115e-5 rad/sec
 
 # Solar corona parameters
-# See Table 8.5 in page 329 of Explanatory Supplement to the Astronomical Almanac 2014 
+# See Table 8.5 in page 329 of Explanatory Supplement to the Astronomical Almanac 2014
 const A_sun = 1.06e8  # [cm^-3]
 const a_sun = 4.89e5  # [cm^-3]
 const b_sun = 3.91e5  # [cm^-3]
 
 # Sun radiated power intensity at photosphere surface, Watt/meter^2
-const S0_sun = 63.15E6 
+const S0_sun = 63.15E6
 # Conversion factor from m^2/sec^3 to au^2/day^3
-const m2_s3_to_au2_day3 = 1e-6daysec^3/au^2 
+const m2_s3_to_au2_day3 = 1e-6daysec^3/au^2
 
 # Vector of J_2*R^2 values
 # J_2: second zonal harmonic coefficient
-# R: radius of the body 
+# R: radius of the body
 const Λ2 = zeros(11)
 Λ2[ea] = 1.9679542578489185e-12  # Earth
 # Vector of J_3*R^3 values
 # J_3: third zonal harmonic coefficient
-# R: radius of the body 
+# R: radius of the body
 const Λ3 = zeros(11)
 Λ3[ea] = -1.962633335678878e-19  # Earth
 
@@ -67,6 +67,6 @@ const d_EM_km = 384_400
 # Earth-Moon distance in [au]
 const d_EM_au = 384_400 / au
 
-# Zeroth order obliquity of the ecliptic in degrees 
+# Zeroth order obliquity of the ecliptic in degrees
 # See equation (5-153) in page 5-61 of https://doi.org/10.1002/0471728470.
 const ϵ0_deg = 84381.448/3_600
\ No newline at end of file